Merge pull request #153 from phargogh/dbf-support

Support for dBase (DBF) files

18 files changed, 3424 insertions, 1 deletions

diff --git a/tablib/compat.py b/tablib/compat.py
index 919f464..d4582d5 100644
--- a/tablib/compat.py
+++ b/tablib/compat.py
@@ -28,6 +28,7 @@ if is_py3:
     from tablib.packages import markup3 as markup
     from tablib.packages import openpyxl3 as openpyxl
     from tablib.packages.odf3 import opendocument, style, text, table
+    import tablib.packages.dbfpy3 as dbfpy
 
     import csv
     from io import StringIO
@@ -49,5 +50,6 @@ else:
     from tablib.packages.odf import opendocument, style, text, table
 
     from tablib.packages import unicodecsv as csv
+    import tablib.packages.dbfpy as dbfpy
 
     unicode = unicode
diff --git a/tablib/core.py b/tablib/core.py
index 9db46c9..02c9085 100644
--- a/tablib/core.py
+++ b/tablib/core.py
@@ -559,6 +559,29 @@ class Dataset(object):
         """
         pass
 
+    @property
+    def dbf():
+        """A dBASE representation of the :class:`Dataset` object.
+
+        A dataset object can also be imported by setting the :class:`Dataset.dbf` attribute:::
+
+            # To import data from an existing DBF file:
+            data = tablib.Dataset()
+            data.dbf = open('existing_table.dbf').read()
+
+            # to import data from an ASCII-encoded bytestring:
+            data = tablib.Dataset()
+            data.dbf = <bytestring of tabular data>
+
+         .. admonition:: Binary Warning
+
+             :class:`Dataset.dbf` contains binary data, so make sure to write in binary mode::
+
+                with open('output.dbf', 'wb') as f:
+                    f.write(data.dbf)
+        """
+        pass
+
 
     # ----
     # Rows
diff --git a/tablib/formats/__init__.py b/tablib/formats/__init__.py
index 5fdf279..1eda107 100644
--- a/tablib/formats/__init__.py
+++ b/tablib/formats/__init__.py
@@ -11,5 +11,6 @@ from . import _tsv as tsv
 from . import _html as html
 from . import _xlsx as xlsx
 from . import _ods as ods
+from . import _dbf as dbf
 
-available = (json, xls, yaml, csv, tsv, html, xlsx, ods)
+available = (json, xls, yaml, csv, dbf, tsv, html, xlsx, ods)
diff --git a/tablib/formats/_dbf.py b/tablib/formats/_dbf.py
new file mode 100644
index 0000000..41c2ef4
--- /dev/null
+++ b/tablib/formats/_dbf.py
@@ -0,0 +1,93 @@
+# -*- coding: utf-8 -*-
+
+""" Tablib - DBF Support.
+"""
+import tempfile
+import struct
+import os
+
+from tablib.compat import StringIO
+from tablib.compat import dbfpy
+from tablib.compat import is_py3
+
+if is_py3:
+    from tablib.packages.dbfpy3 import dbf
+    from tablib.packages.dbfpy3 import dbfnew
+    from tablib.packages.dbfpy3 import record as dbfrecord
+    import io
+else:
+    from tablib.packages.dbfpy import dbf
+    from tablib.packages.dbfpy import dbfnew
+    from tablib.packages.dbfpy import record as dbfrecord
+
+
+title = 'dbf'
+extensions = ('csv',)
+
+DEFAULT_ENCODING = 'utf-8'
+
+def export_set(dataset):
+    """Returns DBF representation of a Dataset"""
+    new_dbf = dbfnew.dbf_new()
+    temp_file, temp_uri = tempfile.mkstemp()
+
+    # create the appropriate fields based on the contents of the first row
+    first_row = dataset[0]
+    for fieldname, field_value in zip(dataset.headers, first_row):
+        if type(field_value) in [int, float]:
+            new_dbf.add_field(fieldname, 'N', 10, 8)
+        else:
+            new_dbf.add_field(fieldname, 'C', 80)
+
+    new_dbf.write(temp_uri)
+
+    dbf_file = dbf.Dbf(temp_uri, readOnly=0)
+    for row in dataset:
+        record = dbfrecord.DbfRecord(dbf_file)
+        for fieldname, field_value in zip(dataset.headers, row):
+            record[fieldname] = field_value
+        record.store()
+
+    dbf_file.close()
+    dbf_stream = open(temp_uri, 'rb')
+    if is_py3:
+        stream = io.BytesIO(dbf_stream.read())
+    else:
+        stream = StringIO(dbf_stream.read())
+    dbf_stream.close()
+    os.remove(temp_uri)
+    return stream.getvalue()
+
+def import_set(dset, in_stream, headers=True):
+    """Returns a dataset from a DBF stream."""
+
+    dset.wipe()
+    if is_py3:
+        _dbf = dbf.Dbf(io.BytesIO(in_stream))
+    else:
+        _dbf = dbf.Dbf(StringIO(in_stream))
+    dset.headers = _dbf.fieldNames
+    for record in range(_dbf.recordCount):
+        row = [_dbf[record][f] for f in _dbf.fieldNames]
+        dset.append(row)
+
+def detect(stream):
+    """Returns True if the given stream is valid DBF"""
+    #_dbf = dbf.Table(StringIO(stream))
+    try:
+        if is_py3:
+            if type(stream) is not bytes:
+                stream = bytes(stream, 'utf-8')
+            _dbf = dbf.Dbf(io.BytesIO(stream), readOnly=True)
+        else:
+            _dbf = dbf.Dbf(StringIO(stream), readOnly=True)
+        return True
+    except (ValueError, struct.error):
+        # When we try to open up a file that's not a DBF, dbfpy raises a
+        # ValueError.
+        # When unpacking a string argument with less than 8 chars, struct.error is
+        # raised.
+        return False
+
+
+
diff --git a/tablib/packages/dbfpy/__init__.py b/tablib/packages/dbfpy/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tablib/packages/dbfpy/__init__.py
diff --git a/tablib/packages/dbfpy/dbf.py b/tablib/packages/dbfpy/dbf.py
new file mode 100644
index 0000000..b3d2e21
--- /dev/null
+++ b/tablib/packages/dbfpy/dbf.py
@@ -0,0 +1,292 @@
+#! /usr/bin/env python
+"""DBF accessing helpers.
+
+FIXME: more documentation needed
+
+Examples:
+
+    Create new table, setup structure, add records:
+
+        dbf = Dbf(filename, new=True)
+        dbf.addField(
+            ("NAME", "C", 15),
+            ("SURNAME", "C", 25),
+            ("INITIALS", "C", 10),
+            ("BIRTHDATE", "D"),
+        )
+        for (n, s, i, b) in (
+            ("John", "Miller", "YC", (1980, 10, 11)),
+            ("Andy", "Larkin", "", (1980, 4, 11)),
+        ):
+            rec = dbf.newRecord()
+            rec["NAME"] = n
+            rec["SURNAME"] = s
+            rec["INITIALS"] = i
+            rec["BIRTHDATE"] = b
+            rec.store()
+        dbf.close()
+
+    Open existed dbf, read some data:
+
+        dbf = Dbf(filename, True)
+        for rec in dbf:
+            for fldName in dbf.fieldNames:
+                print '%s:\t %s (%s)' % (fldName, rec[fldName],
+                    type(rec[fldName]))
+            print
+        dbf.close()
+
+"""
+"""History (most recent first):
+11-feb-2007 [als]   export INVALID_VALUE;
+                    Dbf: added .ignoreErrors, .INVALID_VALUE
+04-jul-2006 [als]   added export declaration
+20-dec-2005 [yc]    removed fromStream and newDbf methods:
+                    use argument of __init__ call must be used instead;
+                    added class fields pointing to the header and
+                    record classes.
+17-dec-2005 [yc]    split to several modules; reimplemented
+13-dec-2005 [yc]    adapted to the changes of the `strutil` module.
+13-sep-2002 [als]   support FoxPro Timestamp datatype
+15-nov-1999 [jjk]   documentation updates, add demo
+24-aug-1998 [jjk]   add some encodeValue methods (not tested), other tweaks
+08-jun-1998 [jjk]   fix problems, add more features
+20-feb-1998 [jjk]   fix problems, add more features
+19-feb-1998 [jjk]   add create/write capabilities
+18-feb-1998 [jjk]   from dbfload.py
+"""
+
+__version__ = "$Revision: 1.7 $"[11:-2]
+__date__ = "$Date: 2007/02/11 09:23:13 $"[7:-2]
+__author__ = "Jeff Kunce <kuncej@mail.conservation.state.mo.us>"
+
+__all__ = ["Dbf"]
+
+from . import header
+from .import record
+from utils import INVALID_VALUE
+
+class Dbf(object):
+    """DBF accessor.
+
+    FIXME:
+        docs and examples needed (dont' forget to tell
+        about problems adding new fields on the fly)
+
+    Implementation notes:
+        ``_new`` field is used to indicate whether this is
+        a new data table. `addField` could be used only for
+        the new tables! If at least one record was appended
+        to the table it's structure couldn't be changed.
+
+    """
+
+    __slots__ = ("name", "header", "stream",
+        "_changed", "_new", "_ignore_errors")
+
+    HeaderClass = header.DbfHeader
+    RecordClass = record.DbfRecord
+    INVALID_VALUE = INVALID_VALUE
+
+    ## initialization and creation helpers
+
+    def __init__(self, f, readOnly=False, new=False, ignoreErrors=False):
+        """Initialize instance.
+
+        Arguments:
+            f:
+                Filename or file-like object.
+            new:
+                True if new data table must be created. Assume
+                data table exists if this argument is False.
+            readOnly:
+                if ``f`` argument is a string file will
+                be opend in read-only mode; in other cases
+                this argument is ignored. This argument is ignored
+                even if ``new`` argument is True.
+            headerObj:
+                `header.DbfHeader` instance or None. If this argument
+                is None, new empty header will be used with the
+                all fields set by default.
+            ignoreErrors:
+                if set, failing field value conversion will return
+                ``INVALID_VALUE`` instead of raising conversion error.
+
+        """
+        if isinstance(f, basestring):
+            # a filename
+            self.name = f
+            if new:
+                # new table (table file must be
+                # created or opened and truncated)
+                self.stream = file(f, "w+b")
+            else:
+                # tabe file must exist
+                self.stream = file(f, ("r+b", "rb")[bool(readOnly)])
+        else:
+            # a stream
+            self.name = getattr(f, "name", "")
+            self.stream = f
+        if new:
+            # if this is a new table, header will be empty
+            self.header = self.HeaderClass()
+        else:
+            # or instantiated using stream
+            self.header = self.HeaderClass.fromStream(self.stream)
+        self.ignoreErrors = ignoreErrors
+        self._new = bool(new)
+        self._changed = False
+
+    ## properties
+
+    closed = property(lambda self: self.stream.closed)
+    recordCount = property(lambda self: self.header.recordCount)
+    fieldNames = property(
+        lambda self: [_fld.name for _fld in self.header.fields])
+    fieldDefs = property(lambda self: self.header.fields)
+    changed = property(lambda self: self._changed or self.header.changed)
+
+    def ignoreErrors(self, value):
+        """Update `ignoreErrors` flag on the header object and self"""
+        self.header.ignoreErrors = self._ignore_errors = bool(value)
+    ignoreErrors = property(
+        lambda self: self._ignore_errors,
+        ignoreErrors,
+        doc="""Error processing mode for DBF field value conversion
+
+        if set, failing field value conversion will return
+        ``INVALID_VALUE`` instead of raising conversion error.
+
+        """)
+
+    ## protected methods
+
+    def _fixIndex(self, index):
+        """Return fixed index.
+
+        This method fails if index isn't a numeric object
+        (long or int). Or index isn't in a valid range
+        (less or equal to the number of records in the db).
+
+        If ``index`` is a negative number, it will be
+        treated as a negative indexes for list objects.
+
+        Return:
+            Return value is numeric object maning valid index.
+
+        """
+        if not isinstance(index, (int, long)):
+            raise TypeError("Index must be a numeric object")
+        if index < 0:
+            # index from the right side
+            # fix it to the left-side index
+            index += len(self) + 1
+        if index >= len(self):
+            raise IndexError("Record index out of range")
+        return index
+
+    ## iterface methods
+
+    def close(self):
+        self.flush()
+        self.stream.close()
+
+    def flush(self):
+        """Flush data to the associated stream."""
+        if self.changed:
+            self.header.setCurrentDate()
+            self.header.write(self.stream)
+            self.stream.flush()
+            self._changed = False
+
+    def indexOfFieldName(self, name):
+        """Index of field named ``name``."""
+        # FIXME: move this to header class
+        return self.header.fields.index(name)
+
+    def newRecord(self):
+        """Return new record, which belong to this table."""
+        return self.RecordClass(self)
+
+    def append(self, record):
+        """Append ``record`` to the database."""
+        record.index = self.header.recordCount
+        record._write()
+        self.header.recordCount += 1
+        self._changed = True
+        self._new = False
+
+    def addField(self, *defs):
+        """Add field definitions.
+
+        For more information see `header.DbfHeader.addField`.
+
+        """
+        if self._new:
+            self.header.addField(*defs)
+        else:
+            raise TypeError("At least one record was added, "
+                "structure can't be changed")
+
+    ## 'magic' methods (representation and sequence interface)
+
+    def __repr__(self):
+        return "Dbf stream '%s'\n" % self.stream + repr(self.header)
+
+    def __len__(self):
+        """Return number of records."""
+        return self.recordCount
+
+    def __getitem__(self, index):
+        """Return `DbfRecord` instance."""
+        return self.RecordClass.fromStream(self, self._fixIndex(index))
+
+    def __setitem__(self, index, record):
+        """Write `DbfRecord` instance to the stream."""
+        record.index = self._fixIndex(index)
+        record._write()
+        self._changed = True
+        self._new = False
+
+    #def __del__(self):
+    #    """Flush stream upon deletion of the object."""
+    #    self.flush()
+
+
+def demoRead(filename):
+    _dbf = Dbf(filename, True)
+    for _rec in _dbf:
+        print
+        print(repr(_rec))
+    _dbf.close()
+
+def demoCreate(filename):
+    _dbf = Dbf(filename, new=True)
+    _dbf.addField(
+        ("NAME", "C", 15),
+        ("SURNAME", "C", 25),
+        ("INITIALS", "C", 10),
+        ("BIRTHDATE", "D"),
+    )
+    for (_n, _s, _i, _b) in (
+        ("John", "Miller", "YC", (1981, 1, 2)),
+        ("Andy", "Larkin", "AL", (1982, 3, 4)),
+        ("Bill", "Clinth", "", (1983, 5, 6)),
+        ("Bobb", "McNail", "", (1984, 7, 8)),
+    ):
+        _rec = _dbf.newRecord()
+        _rec["NAME"] = _n
+        _rec["SURNAME"] = _s
+        _rec["INITIALS"] = _i
+        _rec["BIRTHDATE"] = _b
+        _rec.store()
+    print(repr(_dbf))
+    _dbf.close()
+
+if (__name__=='__main__'):
+    import sys
+    _name = len(sys.argv) > 1 and sys.argv[1] or "county.dbf"
+    demoCreate(_name)
+    demoRead(_name)
+
+# vim: set et sw=4 sts=4 :
diff --git a/tablib/packages/dbfpy/dbfnew.py b/tablib/packages/dbfpy/dbfnew.py
new file mode 100644
index 0000000..dea7e52
--- /dev/null
+++ b/tablib/packages/dbfpy/dbfnew.py
@@ -0,0 +1,188 @@
+#!/usr/bin/python
+""".DBF creation helpers.
+
+Note: this is a legacy interface.  New code should use Dbf class
+    for table creation (see examples in dbf.py)
+
+TODO:
+  - handle Memo fields.
+  - check length of the fields accoring to the
+    `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+
+"""
+"""History (most recent first)
+04-jul-2006 [als]   added export declaration;
+                    updated for dbfpy 2.0
+15-dec-2005 [yc]    define dbf_new.__slots__
+14-dec-2005 [yc]    added vim modeline; retab'd; added doc-strings;
+                    dbf_new now is a new class (inherited from object)
+??-jun-2000 [--]    added by Hans Fiby
+"""
+
+__version__ = "$Revision: 1.4 $"[11:-2]
+__date__ = "$Date: 2006/07/04 08:18:18 $"[7:-2]
+
+__all__ = ["dbf_new"]
+
+from dbf import *
+from fields import *
+from header import *
+from record import *
+
+class _FieldDefinition(object):
+    """Field definition.
+
+    This is a simple structure, which contains ``name``, ``type``,
+    ``len``, ``dec`` and ``cls`` fields.
+
+    Objects also implement get/setitem magic functions, so fields
+    could be accessed via sequence iterface, where 'name' has
+    index 0, 'type' index 1, 'len' index 2, 'dec' index 3 and
+    'cls' could be located at index 4.
+
+    """
+
+    __slots__ = "name", "type", "len", "dec", "cls"
+
+    # WARNING: be attentive - dictionaries are mutable!
+    FLD_TYPES = {
+        # type: (cls, len)
+        "C": (DbfCharacterFieldDef, None),
+        "N": (DbfNumericFieldDef, None),
+        "L": (DbfLogicalFieldDef, 1),
+        # FIXME: support memos
+        # "M": (DbfMemoFieldDef),
+        "D": (DbfDateFieldDef, 8),
+        # FIXME: I'm not sure length should be 14 characters!
+        # but temporary I use it, cuz date is 8 characters
+        # and time 6 (hhmmss)
+        "T": (DbfDateTimeFieldDef, 14),
+    }
+
+    def __init__(self, name, type, len=None, dec=0):
+        _cls, _len = self.FLD_TYPES[type]
+        if _len is None:
+            if len is None:
+                raise ValueError("Field length must be defined")
+            _len = len
+        self.name = name
+        self.type = type
+        self.len = _len
+        self.dec = dec
+        self.cls = _cls
+
+    def getDbfField(self):
+        "Return `DbfFieldDef` instance from the current definition."
+        return self.cls(self.name, self.len, self.dec)
+
+    def appendToHeader(self, dbfh):
+        """Create a `DbfFieldDef` instance and append it to the dbf header.
+
+        Arguments:
+            dbfh: `DbfHeader` instance.
+
+        """
+        _dbff = self.getDbfField()
+        dbfh.addField(_dbff)
+
+
+class dbf_new(object):
+    """New .DBF creation helper.
+
+    Example Usage:
+
+        dbfn = dbf_new()
+        dbfn.add_field("name",'C',80)
+        dbfn.add_field("price",'N',10,2)
+        dbfn.add_field("date",'D',8)
+        dbfn.write("tst.dbf")
+
+    Note:
+        This module cannot handle Memo-fields,
+        they are special.
+
+    """
+
+    __slots__ = ("fields",)
+
+    FieldDefinitionClass = _FieldDefinition
+
+    def __init__(self):
+        self.fields = []
+
+    def add_field(self, name, typ, len, dec=0):
+        """Add field definition.
+
+        Arguments:
+            name:
+                field name (str object). field name must not
+                contain ASCII NULs and it's length shouldn't
+                exceed 10 characters.
+            typ:
+                type of the field. this must be a single character
+                from the "CNLMDT" set meaning character, numeric,
+                logical, memo, date and date/time respectively.
+            len:
+                length of the field. this argument is used only for
+                the character and numeric fields. all other fields
+                have fixed length.
+                FIXME: use None as a default for this argument?
+            dec:
+                decimal precision. used only for the numric fields.
+
+        """
+        self.fields.append(self.FieldDefinitionClass(name, typ, len, dec))
+
+    def write(self, filename):
+        """Create empty .DBF file using current structure."""
+        _dbfh = DbfHeader()
+        _dbfh.setCurrentDate()
+        for _fldDef in self.fields:
+            _fldDef.appendToHeader(_dbfh)
+        _dbfStream = file(filename, "wb")
+        _dbfh.write(_dbfStream)
+        _dbfStream.close()
+
+    def write_stream(self, stream):
+        _dbfh = DbfHeader()
+        _dbfh.setCurrentDate()
+        for _fldDef in self.fields:
+            _fldDef.appendToHeader(_dbfh)
+        _dbfh.write(stream)
+
+
+if (__name__=='__main__'):
+    # create a new DBF-File
+    dbfn=dbf_new()
+    dbfn.add_field("name",'C',80)
+    dbfn.add_field("price",'N',10,2)
+    dbfn.add_field("date",'D',8)
+    dbfn.write("tst.dbf")
+    # test new dbf
+    print "*** created tst.dbf: ***"
+    dbft = Dbf('tst.dbf', readOnly=0)
+    print repr(dbft)
+    # add a record
+    rec=DbfRecord(dbft)
+    rec['name']='something'
+    rec['price']=10.5
+    rec['date']=(2000,1,12)
+    rec.store()
+    # add another record
+    rec=DbfRecord(dbft)
+    rec['name']='foo and bar'
+    rec['price']=12234
+    rec['date']=(1992,7,15)
+    rec.store()
+
+    # show the records
+    print "*** inserted 2 records into tst.dbf: ***"
+    print repr(dbft)
+    for i1 in range(len(dbft)):
+        rec = dbft[i1]
+        for fldName in dbft.fieldNames:
+            print '%s:\t %s'%(fldName, rec[fldName])
+        print
+    dbft.close()
+
+# vim: set et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy/fields.py b/tablib/packages/dbfpy/fields.py
new file mode 100644
index 0000000..69cd436
--- /dev/null
+++ b/tablib/packages/dbfpy/fields.py
@@ -0,0 +1,466 @@
+"""DBF fields definitions.
+
+TODO:
+  - make memos work
+"""
+"""History (most recent first):
+26-may-2009 [als]   DbfNumericFieldDef.decodeValue: strip zero bytes
+05-feb-2009 [als]   DbfDateFieldDef.encodeValue: empty arg produces empty date
+16-sep-2008 [als]   DbfNumericFieldDef decoding looks for decimal point
+                    in the value to select float or integer return type
+13-mar-2008 [als]   check field name length in constructor
+11-feb-2007 [als]   handle value conversion errors
+10-feb-2007 [als]   DbfFieldDef: added .rawFromRecord()
+01-dec-2006 [als]   Timestamp columns use None for empty values
+31-oct-2006 [als]   support field types 'F' (float), 'I' (integer)
+                    and 'Y' (currency);
+                    automate export and registration of field classes
+04-jul-2006 [als]   added export declaration
+10-mar-2006 [als]   decode empty values for Date and Logical fields;
+                    show field name in errors
+10-mar-2006 [als]   fix Numeric value decoding: according to spec,
+                    value always is string representation of the number;
+                    ensure that encoded Numeric value fits into the field
+20-dec-2005 [yc]    use field names in upper case
+15-dec-2005 [yc]    field definitions moved from `dbf`.
+"""
+
+__version__ = "$Revision: 1.14 $"[11:-2]
+__date__ = "$Date: 2009/05/26 05:16:51 $"[7:-2]
+
+__all__ = ["lookupFor",] # field classes added at the end of the module
+
+import datetime
+import struct
+import sys
+
+from . import utils
+
+## abstract definitions
+
+class DbfFieldDef(object):
+    """Abstract field definition.
+
+    Child classes must override ``type`` class attribute to provide datatype
+    infromation of the field definition. For more info about types visit
+    `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+
+    Also child classes must override ``defaultValue`` field to provide
+    default value for the field value.
+
+    If child class has fixed length ``length`` class attribute must be
+    overriden and set to the valid value. None value means, that field
+    isn't of fixed length.
+
+    Note: ``name`` field must not be changed after instantiation.
+
+    """
+
+    __slots__ = ("name", "length", "decimalCount",
+        "start", "end", "ignoreErrors")
+
+    # length of the field, None in case of variable-length field,
+    # or a number if this field is a fixed-length field
+    length = None
+
+    # field type. for more information about fields types visit
+    # `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+    # must be overriden in child classes
+    typeCode = None
+
+    # default value for the field. this field must be
+    # overriden in child classes
+    defaultValue = None
+
+    def __init__(self, name, length=None, decimalCount=None,
+        start=None, stop=None, ignoreErrors=False,
+    ):
+        """Initialize instance."""
+        assert self.typeCode is not None, "Type code must be overriden"
+        assert self.defaultValue is not None, "Default value must be overriden"
+        ## fix arguments
+        if len(name) >10:
+            raise ValueError("Field name \"%s\" is too long" % name)
+        name = str(name).upper()
+        if self.__class__.length is None:
+            if length is None:
+                raise ValueError("[%s] Length isn't specified" % name)
+            length = int(length)
+            if length <= 0:
+                raise ValueError("[%s] Length must be a positive integer"
+                    % name)
+        else:
+            length = self.length
+        if decimalCount is None:
+            decimalCount = 0
+        ## set fields
+        self.name = name
+        # FIXME: validate length according to the specification at
+        # http://www.clicketyclick.dk/databases/xbase/format/data_types.html
+        self.length = length
+        self.decimalCount = decimalCount
+        self.ignoreErrors = ignoreErrors
+        self.start = start
+        self.end = stop
+
+    def __cmp__(self, other):
+        return cmp(self.name, str(other).upper())
+
+    def __hash__(self):
+        return hash(self.name)
+
+    def fromString(cls, string, start, ignoreErrors=False):
+        """Decode dbf field definition from the string data.
+
+        Arguments:
+            string:
+                a string, dbf definition is decoded from. length of
+                the string must be 32 bytes.
+            start:
+                position in the database file.
+            ignoreErrors:
+                initial error processing mode for the new field (boolean)
+
+        """
+        assert len(string) == 32
+        _length = ord(string[16])
+        return cls(utils.unzfill(string)[:11], _length, ord(string[17]),
+            start, start + _length, ignoreErrors=ignoreErrors)
+    fromString = classmethod(fromString)
+
+    def toString(self):
+        """Return encoded field definition.
+
+        Return:
+            Return value is a string object containing encoded
+            definition of this field.
+
+        """
+        if sys.version_info < (2, 4):
+            # earlier versions did not support padding character
+            _name = self.name[:11] + "\0" * (11 - len(self.name))
+        else:
+            _name = self.name.ljust(11, '\0')
+        return (
+            _name +
+            self.typeCode +
+            #data address
+            chr(0) * 4 +
+            chr(self.length) +
+            chr(self.decimalCount) +
+            chr(0) * 14
+        )
+
+    def __repr__(self):
+        return "%-10s %1s %3d %3d" % self.fieldInfo()
+
+    def fieldInfo(self):
+        """Return field information.
+
+        Return:
+            Return value is a (name, type, length, decimals) tuple.
+
+        """
+        return (self.name, self.typeCode, self.length, self.decimalCount)
+
+    def rawFromRecord(self, record):
+        """Return a "raw" field value from the record string."""
+        return record[self.start:self.end]
+
+    def decodeFromRecord(self, record):
+        """Return decoded field value from the record string."""
+        try:
+            return self.decodeValue(self.rawFromRecord(record))
+        except:
+            if self.ignoreErrors:
+                return utils.INVALID_VALUE
+            else:
+                raise
+
+    def decodeValue(self, value):
+        """Return decoded value from string value.
+
+        This method shouldn't be used publicly. It's called from the
+        `decodeFromRecord` method.
+
+        This is an abstract method and it must be overridden in child classes.
+        """
+        raise NotImplementedError
+
+    def encodeValue(self, value):
+        """Return str object containing encoded field value.
+
+        This is an abstract method and it must be overriden in child classes.
+        """
+        raise NotImplementedError
+
+## real classes
+
+class DbfCharacterFieldDef(DbfFieldDef):
+    """Definition of the character field."""
+
+    typeCode = "C"
+    defaultValue = ""
+
+    def decodeValue(self, value):
+        """Return string object.
+
+        Return value is a ``value`` argument with stripped right spaces.
+
+        """
+        return value.rstrip(" ")
+
+    def encodeValue(self, value):
+        """Return raw data string encoded from a ``value``."""
+        return str(value)[:self.length].ljust(self.length)
+
+
+class DbfNumericFieldDef(DbfFieldDef):
+    """Definition of the numeric field."""
+
+    typeCode = "N"
+    # XXX: now I'm not sure it was a good idea to make a class field
+    # `defaultValue` instead of a generic method as it was implemented
+    # previously -- it's ok with all types except number, cuz
+    # if self.decimalCount is 0, we should return 0 and 0.0 otherwise.
+    defaultValue = 0
+
+    def decodeValue(self, value):
+        """Return a number decoded from ``value``.
+
+        If decimals is zero, value will be decoded as an integer;
+        or as a float otherwise.
+
+        Return:
+            Return value is a int (long) or float instance.
+
+        """
+        value = value.strip(" \0")
+        if "." in value:
+            # a float (has decimal separator)
+            return float(value)
+        elif value:
+            # must be an integer
+            return int(value)
+        else:
+            return 0
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        _rv = ("%*.*f" % (self.length, self.decimalCount, value))
+        if len(_rv) > self.length:
+            _ppos = _rv.find(".")
+            if 0 <= _ppos <= self.length:
+                _rv = _rv[:self.length]
+            else:
+                raise ValueError("[%s] Numeric overflow: %s (field width: %i)"
+                    % (self.name, _rv, self.length))
+        return _rv
+
+class DbfFloatFieldDef(DbfNumericFieldDef):
+    """Definition of the float field - same as numeric."""
+
+    typeCode = "F"
+
+class DbfIntegerFieldDef(DbfFieldDef):
+    """Definition of the integer field."""
+
+    typeCode = "I"
+    length = 4
+    defaultValue = 0
+
+    def decodeValue(self, value):
+        """Return an integer number decoded from ``value``."""
+        return struct.unpack("<i", value)[0]
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        return struct.pack("<i", int(value))
+
+class DbfCurrencyFieldDef(DbfFieldDef):
+    """Definition of the currency field."""
+
+    typeCode = "Y"
+    length = 8
+    defaultValue = 0.0
+
+    def decodeValue(self, value):
+        """Return float number decoded from ``value``."""
+        return struct.unpack("<q", value)[0] / 10000.
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        return struct.pack("<q", round(value * 10000))
+
+class DbfLogicalFieldDef(DbfFieldDef):
+    """Definition of the logical field."""
+
+    typeCode = "L"
+    defaultValue = -1
+    length = 1
+
+    def decodeValue(self, value):
+        """Return True, False or -1 decoded from ``value``."""
+        # Note: value always is 1-char string
+        if value == "?":
+            return -1
+        if value in "NnFf ":
+            return False
+        if value in "YyTt":
+            return True
+        raise ValueError("[%s] Invalid logical value %r" % (self.name, value))
+
+    def encodeValue(self, value):
+        """Return a character from the "TF?" set.
+
+        Return:
+            Return value is "T" if ``value`` is True
+            "?" if value is -1 or False otherwise.
+
+        """
+        if value is True:
+            return "T"
+        if value == -1:
+            return "?"
+        return "F"
+
+
+class DbfMemoFieldDef(DbfFieldDef):
+    """Definition of the memo field.
+
+    Note: memos aren't currenly completely supported.
+
+    """
+
+    typeCode = "M"
+    defaultValue = " " * 10
+    length = 10
+
+    def decodeValue(self, value):
+        """Return int .dbt block number decoded from the string object."""
+        #return int(value)
+        raise NotImplementedError
+
+    def encodeValue(self, value):
+        """Return raw data string encoded from a ``value``.
+
+        Note: this is an internal method.
+
+        """
+        #return str(value)[:self.length].ljust(self.length)
+        raise NotImplementedError
+
+
+class DbfDateFieldDef(DbfFieldDef):
+    """Definition of the date field."""
+
+    typeCode = "D"
+    defaultValue = utils.classproperty(lambda cls: datetime.date.today())
+    # "yyyymmdd" gives us 8 characters
+    length = 8
+
+    def decodeValue(self, value):
+        """Return a ``datetime.date`` instance decoded from ``value``."""
+        if value.strip():
+            return utils.getDate(value)
+        else:
+            return None
+
+    def encodeValue(self, value):
+        """Return a string-encoded value.
+
+        ``value`` argument should be a value suitable for the
+        `utils.getDate` call.
+
+        Return:
+            Return value is a string in format "yyyymmdd".
+
+        """
+        if value:
+            return utils.getDate(value).strftime("%Y%m%d")
+        else:
+            return " " * self.length
+
+
+class DbfDateTimeFieldDef(DbfFieldDef):
+    """Definition of the timestamp field."""
+
+    # a difference between JDN (Julian Day Number)
+    # and GDN (Gregorian Day Number). note, that GDN < JDN
+    JDN_GDN_DIFF = 1721425
+    typeCode = "T"
+    defaultValue = utils.classproperty(lambda cls: datetime.datetime.now())
+    # two 32-bits integers representing JDN and amount of
+    # milliseconds respectively gives us 8 bytes.
+    # note, that values must be encoded in LE byteorder.
+    length = 8
+
+    def decodeValue(self, value):
+        """Return a `datetime.datetime` instance."""
+        assert len(value) == self.length
+        # LE byteorder
+        _jdn, _msecs = struct.unpack("<2I", value)
+        if _jdn >= 1:
+            _rv = datetime.datetime.fromordinal(_jdn - self.JDN_GDN_DIFF)
+            _rv += datetime.timedelta(0, _msecs / 1000.0)
+        else:
+            # empty date
+            _rv = None
+        return _rv
+
+    def encodeValue(self, value):
+        """Return a string-encoded ``value``."""
+        if value:
+            value = utils.getDateTime(value)
+            # LE byteorder
+            _rv = struct.pack("<2I", value.toordinal() + self.JDN_GDN_DIFF,
+                (value.hour * 3600 + value.minute * 60 + value.second) * 1000)
+        else:
+            _rv = "\0" * self.length
+        assert len(_rv) == self.length
+        return _rv
+
+
+_fieldsRegistry = {}
+
+def registerField(fieldCls):
+    """Register field definition class.
+
+    ``fieldCls`` should be subclass of the `DbfFieldDef`.
+
+    Use `lookupFor` to retrieve field definition class
+    by the type code.
+
+    """
+    assert fieldCls.typeCode is not None, "Type code isn't defined"
+    # XXX: use fieldCls.typeCode.upper()? in case of any decign
+    # don't forget to look to the same comment in ``lookupFor`` method
+    _fieldsRegistry[fieldCls.typeCode] = fieldCls
+
+
+def lookupFor(typeCode):
+    """Return field definition class for the given type code.
+
+    ``typeCode`` must be a single character. That type should be
+    previously registered.
+
+    Use `registerField` to register new field class.
+
+    Return:
+        Return value is a subclass of the `DbfFieldDef`.
+
+    """
+    # XXX: use typeCode.upper()? in case of any decign don't
+    # forget to look to the same comment in ``registerField``
+    return _fieldsRegistry[typeCode]
+
+## register generic types
+
+for (_name, _val) in globals().items():
+    if isinstance(_val, type) and issubclass(_val, DbfFieldDef) \
+    and (_name != "DbfFieldDef"):
+        __all__.append(_name)
+        registerField(_val)
+del _name, _val
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy/header.py b/tablib/packages/dbfpy/header.py
new file mode 100644
index 0000000..03a877c
--- /dev/null
+++ b/tablib/packages/dbfpy/header.py
@@ -0,0 +1,275 @@
+"""DBF header definition.
+
+TODO:
+  - handle encoding of the character fields
+    (encoding information stored in the DBF header)
+
+"""
+"""History (most recent first):
+16-sep-2010 [als]   fromStream: fix century of the last update field
+11-feb-2007 [als]   added .ignoreErrors
+10-feb-2007 [als]   added __getitem__: return field definitions
+                    by field name or field number (zero-based)
+04-jul-2006 [als]   added export declaration
+15-dec-2005 [yc]    created
+"""
+
+__version__ = "$Revision: 1.6 $"[11:-2]
+__date__ = "$Date: 2010/09/16 05:06:39 $"[7:-2]
+
+__all__ = ["DbfHeader"]
+
+try:
+    import cStringIO
+except ImportError:
+    # when we're in python3, we cStringIO has been replaced by io.StringIO
+    import io as cStringIO
+import datetime
+import struct
+import time
+
+from . import fields
+from . import utils
+
+
+class DbfHeader(object):
+    """Dbf header definition.
+
+    For more information about dbf header format visit
+    `http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_STRUCT`
+
+    Examples:
+        Create an empty dbf header and add some field definitions:
+            dbfh = DbfHeader()
+            dbfh.addField(("name", "C", 10))
+            dbfh.addField(("date", "D"))
+            dbfh.addField(DbfNumericFieldDef("price", 5, 2))
+        Create a dbf header with field definitions:
+            dbfh = DbfHeader([
+                ("name", "C", 10),
+                ("date", "D"),
+                DbfNumericFieldDef("price", 5, 2),
+            ])
+
+    """
+
+    __slots__ = ("signature", "fields", "lastUpdate", "recordLength",
+        "recordCount", "headerLength", "changed", "_ignore_errors")
+
+    ## instance construction and initialization methods
+
+    def __init__(self, fields=None, headerLength=0, recordLength=0,
+        recordCount=0, signature=0x03, lastUpdate=None, ignoreErrors=False,
+    ):
+        """Initialize instance.
+
+        Arguments:
+            fields:
+                a list of field definitions;
+            recordLength:
+                size of the records;
+            headerLength:
+                size of the header;
+            recordCount:
+                number of records stored in DBF;
+            signature:
+                version number (aka signature). using 0x03 as a default meaning
+                "File without DBT". for more information about this field visit
+                ``http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_NOTE_1_TARGET``
+            lastUpdate:
+                date of the DBF's update. this could be a string ('yymmdd' or
+                'yyyymmdd'), timestamp (int or float), datetime/date value,
+                a sequence (assuming (yyyy, mm, dd, ...)) or an object having
+                callable ``ticks`` field.
+            ignoreErrors:
+                error processing mode for DBF fields (boolean)
+
+        """
+        self.signature = signature
+        if fields is None:
+            self.fields = []
+        else:
+            self.fields = list(fields)
+        self.lastUpdate = utils.getDate(lastUpdate)
+        self.recordLength = recordLength
+        self.headerLength = headerLength
+        self.recordCount = recordCount
+        self.ignoreErrors = ignoreErrors
+        # XXX: I'm not sure this is safe to
+        # initialize `self.changed` in this way
+        self.changed = bool(self.fields)
+
+    # @classmethod
+    def fromString(cls, string):
+        """Return header instance from the string object."""
+        return cls.fromStream(cStringIO.StringIO(str(string)))
+    fromString = classmethod(fromString)
+
+    # @classmethod
+    def fromStream(cls, stream):
+        """Return header object from the stream."""
+        stream.seek(0)
+        _data = stream.read(32)
+        (_cnt, _hdrLen, _recLen) = struct.unpack("<I2H", _data[4:12])
+        #reserved = _data[12:32]
+        _year = ord(_data[1])
+        if _year < 80:
+            # dBase II started at 1980.  It is quite unlikely
+            # that actual last update date is before that year.
+            _year += 2000
+        else:
+            _year += 1900
+        ## create header object
+        _obj = cls(None, _hdrLen, _recLen, _cnt, ord(_data[0]),
+            (_year, ord(_data[2]), ord(_data[3])))
+        ## append field definitions
+        # position 0 is for the deletion flag
+        _pos = 1
+        _data = stream.read(1)
+
+        # The field definitions are ended either by \x0D OR a newline
+        # character, so we need to handle both when reading from a stream.
+        # When writing, dbfpy appears to write newlines instead of \x0D.
+        while _data[0] not in ["\x0D", "\n"]:
+            _data += stream.read(31)
+            _fld = fields.lookupFor(_data[11]).fromString(_data, _pos)
+            _obj._addField(_fld)
+            _pos = _fld.end
+            _data = stream.read(1)
+        return _obj
+    fromStream = classmethod(fromStream)
+
+    ## properties
+
+    year = property(lambda self: self.lastUpdate.year)
+    month = property(lambda self: self.lastUpdate.month)
+    day = property(lambda self: self.lastUpdate.day)
+
+    def ignoreErrors(self, value):
+        """Update `ignoreErrors` flag on self and all fields"""
+        self._ignore_errors = value = bool(value)
+        for _field in self.fields:
+            _field.ignoreErrors = value
+    ignoreErrors = property(
+        lambda self: self._ignore_errors,
+        ignoreErrors,
+        doc="""Error processing mode for DBF field value conversion
+
+        if set, failing field value conversion will return
+        ``INVALID_VALUE`` instead of raising conversion error.
+
+        """)
+
+    ## object representation
+
+    def __repr__(self):
+        _rv = """\
+Version (signature): 0x%02x
+        Last update: %s
+      Header length: %d
+      Record length: %d
+       Record count: %d
+ FieldName Type Len Dec
+""" % (self.signature, self.lastUpdate, self.headerLength,
+    self.recordLength, self.recordCount)
+        _rv += "\n".join(
+            ["%10s %4s %3s %3s" % _fld.fieldInfo() for _fld in self.fields]
+        )
+        return _rv
+
+    ## internal methods
+
+    def _addField(self, *defs):
+        """Internal variant of the `addField` method.
+
+        This method doesn't set `self.changed` field to True.
+
+        Return value is a length of the appended records.
+        Note: this method doesn't modify ``recordLength`` and
+        ``headerLength`` fields. Use `addField` instead of this
+        method if you don't exactly know what you're doing.
+
+        """
+        # insure we have dbf.DbfFieldDef instances first (instantiation
+        # from the tuple could raise an error, in such a case I don't
+        # wanna add any of the definitions -- all will be ignored)
+        _defs = []
+        _recordLength = 0
+        for _def in defs:
+            if isinstance(_def, fields.DbfFieldDef):
+                _obj = _def
+            else:
+                (_name, _type, _len, _dec) = (tuple(_def) + (None,) * 4)[:4]
+                _cls = fields.lookupFor(_type)
+                _obj = _cls(_name, _len, _dec,
+                    ignoreErrors=self._ignore_errors)
+            _recordLength += _obj.length
+            _defs.append(_obj)
+        # and now extend field definitions and
+        # update record length
+        self.fields += _defs
+        return _recordLength
+
+    ## interface methods
+
+    def addField(self, *defs):
+        """Add field definition to the header.
+
+        Examples:
+            dbfh.addField(
+                ("name", "C", 20),
+                dbf.DbfCharacterFieldDef("surname", 20),
+                dbf.DbfDateFieldDef("birthdate"),
+                ("member", "L"),
+            )
+            dbfh.addField(("price", "N", 5, 2))
+            dbfh.addField(dbf.DbfNumericFieldDef("origprice", 5, 2))
+
+        """
+        _oldLen = self.recordLength
+        self.recordLength += self._addField(*defs)
+        if not _oldLen:
+            self.recordLength += 1
+            # XXX: may be just use:
+            # self.recordeLength += self._addField(*defs) + bool(not _oldLen)
+        # recalculate headerLength
+        self.headerLength = 32 + (32 * len(self.fields)) + 1
+        self.changed = True
+
+    def write(self, stream):
+        """Encode and write header to the stream."""
+        stream.seek(0)
+        stream.write(self.toString())
+        stream.write("".join([_fld.toString() for _fld in self.fields]))
+        stream.write(chr(0x0D))   # cr at end of all hdr data
+        self.changed = False
+
+    def toString(self):
+        """Returned 32 chars length string with encoded header."""
+        return struct.pack("<4BI2H",
+            self.signature,
+            self.year - 1900,
+            self.month,
+            self.day,
+            self.recordCount,
+            self.headerLength,
+            self.recordLength) + "\0" * 20
+
+    def setCurrentDate(self):
+        """Update ``self.lastUpdate`` field with current date value."""
+        self.lastUpdate = datetime.date.today()
+
+    def __getitem__(self, item):
+        """Return a field definition by numeric index or name string"""
+        if isinstance(item, basestring):
+            _name = item.upper()
+            for _field in self.fields:
+                if _field.name == _name:
+                    return _field
+            else:
+                raise KeyError(item)
+        else:
+            # item must be field index
+            return self.fields[item]
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy/record.py b/tablib/packages/dbfpy/record.py
new file mode 100644
index 0000000..97bbfb3
--- /dev/null
+++ b/tablib/packages/dbfpy/record.py
@@ -0,0 +1,262 @@
+"""DBF record definition.
+
+"""
+"""History (most recent first):
+11-feb-2007 [als]   __repr__: added special case for invalid field values
+10-feb-2007 [als]   added .rawFromStream()
+30-oct-2006 [als]   fix record length in .fromStream()
+04-jul-2006 [als]   added export declaration
+20-dec-2005 [yc]    DbfRecord.write() -> DbfRecord._write();
+                    added delete() method.
+16-dec-2005 [yc]    record definition moved from `dbf`.
+"""
+
+__version__ = "$Revision: 1.7 $"[11:-2]
+__date__ = "$Date: 2007/02/11 09:05:49 $"[7:-2]
+
+__all__ = ["DbfRecord"]
+
+from itertools import izip
+
+import utils
+
+class DbfRecord(object):
+    """DBF record.
+
+    Instances of this class shouldn't be created manualy,
+    use `dbf.Dbf.newRecord` instead.
+
+    Class implements mapping/sequence interface, so
+    fields could be accessed via their names or indexes
+    (names is a preffered way to access fields).
+
+    Hint:
+        Use `store` method to save modified record.
+
+    Examples:
+        Add new record to the database:
+            db = Dbf(filename)
+            rec = db.newRecord()
+            rec["FIELD1"] = value1
+            rec["FIELD2"] = value2
+            rec.store()
+        Or the same, but modify existed
+        (second in this case) record:
+            db = Dbf(filename)
+            rec = db[2]
+            rec["FIELD1"] = value1
+            rec["FIELD2"] = value2
+            rec.store()
+
+    """
+
+    __slots__ = "dbf", "index", "deleted", "fieldData"
+
+    ## creation and initialization
+
+    def __init__(self, dbf, index=None, deleted=False, data=None):
+        """Instance initialiation.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance this record belonogs to.
+            index:
+                An integer record index or None. If this value is
+                None, record will be appended to the DBF.
+            deleted:
+                Boolean flag indicating whether this record
+                is a deleted record.
+            data:
+                A sequence or None. This is a data of the fields.
+                If this argument is None, default values will be used.
+
+        """
+        self.dbf = dbf
+        # XXX: I'm not sure ``index`` is necessary
+        self.index = index
+        self.deleted = deleted
+        if data is None:
+            self.fieldData = [_fd.defaultValue for _fd in dbf.header.fields]
+        else:
+            self.fieldData = list(data)
+
+    # XXX: validate self.index before calculating position?
+    position = property(lambda self: self.dbf.header.headerLength + \
+        self.index * self.dbf.header.recordLength)
+
+    def rawFromStream(cls, dbf, index):
+        """Return raw record contents read from the stream.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance containing the record.
+            index:
+                Index of the record in the records' container.
+                This argument can't be None in this call.
+
+        Return value is a string containing record data in DBF format.
+
+        """
+        # XXX: may be write smth assuming, that current stream
+        # position is the required one? it could save some
+        # time required to calculate where to seek in the file
+        dbf.stream.seek(dbf.header.headerLength +
+            index * dbf.header.recordLength)
+        return dbf.stream.read(dbf.header.recordLength)
+    rawFromStream = classmethod(rawFromStream)
+
+    def fromStream(cls, dbf, index):
+        """Return a record read from the stream.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance new record should belong to.
+            index:
+                Index of the record in the records' container.
+                This argument can't be None in this call.
+
+        Return value is an instance of the current class.
+
+        """
+        return cls.fromString(dbf, cls.rawFromStream(dbf, index), index)
+    fromStream = classmethod(fromStream)
+
+    def fromString(cls, dbf, string, index=None):
+        """Return record read from the string object.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance new record should belong to.
+            string:
+                A string new record should be created from.
+            index:
+                Index of the record in the container. If this
+                argument is None, record will be appended.
+
+        Return value is an instance of the current class.
+
+        """
+        return cls(dbf, index, string[0]=="*",
+            [_fd.decodeFromRecord(string) for _fd in dbf.header.fields])
+    fromString = classmethod(fromString)
+
+    ## object representation
+
+    def __repr__(self):
+        _template = "%%%ds: %%s (%%s)" % max([len(_fld)
+            for _fld in self.dbf.fieldNames])
+        _rv = []
+        for _fld in self.dbf.fieldNames:
+            _val = self[_fld]
+            if _val is utils.INVALID_VALUE:
+                _rv.append(_template %
+                    (_fld, "None", "value cannot be decoded"))
+            else:
+                _rv.append(_template % (_fld, _val, type(_val)))
+        return "\n".join(_rv)
+
+    ## protected methods
+
+    def _write(self):
+        """Write data to the dbf stream.
+
+        Note:
+            This isn't a public method, it's better to
+            use 'store' instead publically.
+            Be design ``_write`` method should be called
+            only from the `Dbf` instance.
+
+
+        """
+        self._validateIndex(False)
+        self.dbf.stream.seek(self.position)
+        self.dbf.stream.write(self.toString())
+        # FIXME: may be move this write somewhere else?
+        # why we should check this condition for each record?
+        if self.index == len(self.dbf):
+            # this is the last record,
+            # we should write SUB (ASCII 26)
+            self.dbf.stream.write("\x1A")
+
+    ## utility methods
+
+    def _validateIndex(self, allowUndefined=True, checkRange=False):
+        """Valid ``self.index`` value.
+
+        If ``allowUndefined`` argument is True functions does nothing
+        in case of ``self.index`` pointing to None object.
+
+        """
+        if self.index is None:
+            if not allowUndefined:
+                raise ValueError("Index is undefined")
+        elif self.index < 0:
+            raise ValueError("Index can't be negative (%s)" % self.index)
+        elif checkRange and self.index <= self.dbf.header.recordCount:
+            raise ValueError("There are only %d records in the DBF" %
+                self.dbf.header.recordCount)
+
+    ## interface methods
+
+    def store(self):
+        """Store current record in the DBF.
+
+        If ``self.index`` is None, this record will be appended to the
+        records of the DBF this records belongs to; or replaced otherwise.
+
+        """
+        self._validateIndex()
+        if self.index is None:
+            self.index = len(self.dbf)
+            self.dbf.append(self)
+        else:
+            self.dbf[self.index] = self
+
+    def delete(self):
+        """Mark method as deleted."""
+        self.deleted = True
+
+    def toString(self):
+        """Return string packed record values."""
+        return "".join([" *"[self.deleted]] + [
+            _def.encodeValue(_dat)
+            for (_def, _dat) in izip(self.dbf.header.fields, self.fieldData)
+        ])
+
+    def asList(self):
+        """Return a flat list of fields.
+
+        Note:
+            Change of the list's values won't change
+            real values stored in this object.
+
+        """
+        return self.fieldData[:]
+
+    def asDict(self):
+        """Return a dictionary of fields.
+
+        Note:
+            Change of the dicts's values won't change
+            real values stored in this object.
+
+        """
+        return dict([_i for _i in izip(self.dbf.fieldNames, self.fieldData)])
+
+    def __getitem__(self, key):
+        """Return value by field name or field index."""
+        if isinstance(key, (long, int)):
+            # integer index of the field
+            return self.fieldData[key]
+        # assuming string field name
+        return self.fieldData[self.dbf.indexOfFieldName(key)]
+
+    def __setitem__(self, key, value):
+        """Set field value by integer index of the field or string name."""
+        if isinstance(key, (int, long)):
+            # integer index of the field
+            return self.fieldData[key]
+        # assuming string field name
+        self.fieldData[self.dbf.indexOfFieldName(key)] = value
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy/utils.py b/tablib/packages/dbfpy/utils.py
new file mode 100644
index 0000000..cef8aa5
--- /dev/null
+++ b/tablib/packages/dbfpy/utils.py
@@ -0,0 +1,170 @@
+"""String utilities.
+
+TODO:
+  - allow strings in getDateTime routine;
+"""
+"""History (most recent first):
+11-feb-2007 [als]   added INVALID_VALUE
+10-feb-2007 [als]   allow date strings padded with spaces instead of zeroes
+20-dec-2005 [yc]    handle long objects in getDate/getDateTime
+16-dec-2005 [yc]    created from ``strutil`` module.
+"""
+
+__version__ = "$Revision: 1.4 $"[11:-2]
+__date__ = "$Date: 2007/02/11 08:57:17 $"[7:-2]
+
+import datetime
+import time
+
+
+def unzfill(str):
+    """Return a string without ASCII NULs.
+
+    This function searchers for the first NUL (ASCII 0) occurance
+    and truncates string till that position.
+
+    """
+    try:
+        return str[:str.index('\0')]
+    except ValueError:
+        return str
+
+
+def getDate(date=None):
+    """Return `datetime.date` instance.
+
+    Type of the ``date`` argument could be one of the following:
+        None:
+            use current date value;
+        datetime.date:
+            this value will be returned;
+        datetime.datetime:
+            the result of the date.date() will be returned;
+        string:
+            assuming "%Y%m%d" or "%y%m%dd" format;
+        number:
+            assuming it's a timestamp (returned for example
+            by the time.time() call;
+        sequence:
+            assuming (year, month, day, ...) sequence;
+
+    Additionaly, if ``date`` has callable ``ticks`` attribute,
+    it will be used and result of the called would be treated
+    as a timestamp value.
+
+    """
+    if date is None:
+        # use current value
+        return datetime.date.today()
+    if isinstance(date, datetime.date):
+        return date
+    if isinstance(date, datetime.datetime):
+        return date.date()
+    if isinstance(date, (int, long, float)):
+        # date is a timestamp
+        return datetime.date.fromtimestamp(date)
+    if isinstance(date, basestring):
+        date = date.replace(" ", "0")
+        if len(date) == 6:
+            # yymmdd
+            return datetime.date(*time.strptime(date, "%y%m%d")[:3])
+        # yyyymmdd
+        return datetime.date(*time.strptime(date, "%Y%m%d")[:3])
+    if hasattr(date, "__getitem__"):
+        # a sequence (assuming date/time tuple)
+        return datetime.date(*date[:3])
+    return datetime.date.fromtimestamp(date.ticks())
+
+
+def getDateTime(value=None):
+    """Return `datetime.datetime` instance.
+
+    Type of the ``value`` argument could be one of the following:
+        None:
+            use current date value;
+        datetime.date:
+            result will be converted to the `datetime.datetime` instance
+            using midnight;
+        datetime.datetime:
+            ``value`` will be returned as is;
+        string:
+            *** CURRENTLY NOT SUPPORTED ***;
+        number:
+            assuming it's a timestamp (returned for example
+            by the time.time() call;
+        sequence:
+            assuming (year, month, day, ...) sequence;
+
+    Additionaly, if ``value`` has callable ``ticks`` attribute,
+    it will be used and result of the called would be treated
+    as a timestamp value.
+
+    """
+    if value is None:
+        # use current value
+        return datetime.datetime.today()
+    if isinstance(value, datetime.datetime):
+        return value
+    if isinstance(value, datetime.date):
+        return datetime.datetime.fromordinal(value.toordinal())
+    if isinstance(value, (int, long, float)):
+        # value is a timestamp
+        return datetime.datetime.fromtimestamp(value)
+    if isinstance(value, basestring):
+        raise NotImplementedError("Strings aren't currently implemented")
+    if hasattr(value, "__getitem__"):
+        # a sequence (assuming date/time tuple)
+        return datetime.datetime(*tuple(value)[:6])
+    return datetime.datetime.fromtimestamp(value.ticks())
+
+
+class classproperty(property):
+    """Works in the same way as a ``property``, but for the classes."""
+
+    def __get__(self, obj, cls):
+        return self.fget(cls)
+
+
+class _InvalidValue(object):
+
+    """Value returned from DBF records when field validation fails
+
+    The value is not equal to anything except for itself
+    and equal to all empty values: None, 0, empty string etc.
+    In other words, invalid value is equal to None and not equal
+    to None at the same time.
+
+    This value yields zero upon explicit conversion to a number type,
+    empty string for string types, and False for boolean.
+
+    """
+
+    def __eq__(self, other):
+        return not other
+
+    def __ne__(self, other):
+        return not (other is self)
+
+    def __nonzero__(self):
+        return False
+
+    def __int__(self):
+        return 0
+    __long__ = __int__
+
+    def __float__(self):
+        return 0.0
+
+    def __str__(self):
+        return ""
+
+    def __unicode__(self):
+        return u""
+
+    def __repr__(self):
+        return "<INVALID>"
+
+# invalid value is a constant singleton
+INVALID_VALUE = _InvalidValue()
+
+# vim: set et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy3/__init__.py b/tablib/packages/dbfpy3/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tablib/packages/dbfpy3/__init__.py
diff --git a/tablib/packages/dbfpy3/dbf.py b/tablib/packages/dbfpy3/dbf.py
new file mode 100644
index 0000000..42de8a4
--- /dev/null
+++ b/tablib/packages/dbfpy3/dbf.py
@@ -0,0 +1,293 @@
+#! /usr/bin/env python
+"""DBF accessing helpers.
+
+FIXME: more documentation needed
+
+Examples:
+
+    Create new table, setup structure, add records:
+
+        dbf = Dbf(filename, new=True)
+        dbf.addField(
+            ("NAME", "C", 15),
+            ("SURNAME", "C", 25),
+            ("INITIALS", "C", 10),
+            ("BIRTHDATE", "D"),
+        )
+        for (n, s, i, b) in (
+            ("John", "Miller", "YC", (1980, 10, 11)),
+            ("Andy", "Larkin", "", (1980, 4, 11)),
+        ):
+            rec = dbf.newRecord()
+            rec["NAME"] = n
+            rec["SURNAME"] = s
+            rec["INITIALS"] = i
+            rec["BIRTHDATE"] = b
+            rec.store()
+        dbf.close()
+
+    Open existed dbf, read some data:
+
+        dbf = Dbf(filename, True)
+        for rec in dbf:
+            for fldName in dbf.fieldNames:
+                print '%s:\t %s (%s)' % (fldName, rec[fldName],
+                    type(rec[fldName]))
+            print
+        dbf.close()
+
+"""
+"""History (most recent first):
+11-feb-2007 [als]   export INVALID_VALUE;
+                    Dbf: added .ignoreErrors, .INVALID_VALUE
+04-jul-2006 [als]   added export declaration
+20-dec-2005 [yc]    removed fromStream and newDbf methods:
+                    use argument of __init__ call must be used instead;
+                    added class fields pointing to the header and
+                    record classes.
+17-dec-2005 [yc]    split to several modules; reimplemented
+13-dec-2005 [yc]    adapted to the changes of the `strutil` module.
+13-sep-2002 [als]   support FoxPro Timestamp datatype
+15-nov-1999 [jjk]   documentation updates, add demo
+24-aug-1998 [jjk]   add some encodeValue methods (not tested), other tweaks
+08-jun-1998 [jjk]   fix problems, add more features
+20-feb-1998 [jjk]   fix problems, add more features
+19-feb-1998 [jjk]   add create/write capabilities
+18-feb-1998 [jjk]   from dbfload.py
+"""
+
+__version__ = "$Revision: 1.7 $"[11:-2]
+__date__ = "$Date: 2007/02/11 09:23:13 $"[7:-2]
+__author__ = "Jeff Kunce <kuncej@mail.conservation.state.mo.us>"
+
+__all__ = ["Dbf"]
+
+from . import header
+from . import record
+from .utils import INVALID_VALUE
+
+class Dbf(object):
+    """DBF accessor.
+
+    FIXME:
+        docs and examples needed (dont' forget to tell
+        about problems adding new fields on the fly)
+
+    Implementation notes:
+        ``_new`` field is used to indicate whether this is
+        a new data table. `addField` could be used only for
+        the new tables! If at least one record was appended
+        to the table it's structure couldn't be changed.
+
+    """
+
+    __slots__ = ("name", "header", "stream",
+        "_changed", "_new", "_ignore_errors")
+
+    HeaderClass = header.DbfHeader
+    RecordClass = record.DbfRecord
+    INVALID_VALUE = INVALID_VALUE
+
+    ## initialization and creation helpers
+
+    def __init__(self, f, readOnly=False, new=False, ignoreErrors=False):
+        """Initialize instance.
+
+        Arguments:
+            f:
+                Filename or file-like object.
+            new:
+                True if new data table must be created. Assume
+                data table exists if this argument is False.
+            readOnly:
+                if ``f`` argument is a string file will
+                be opend in read-only mode; in other cases
+                this argument is ignored. This argument is ignored
+                even if ``new`` argument is True.
+            headerObj:
+                `header.DbfHeader` instance or None. If this argument
+                is None, new empty header will be used with the
+                all fields set by default.
+            ignoreErrors:
+                if set, failing field value conversion will return
+                ``INVALID_VALUE`` instead of raising conversion error.
+
+        """
+        if isinstance(f, str):
+            # a filename
+            self.name = f
+            if new:
+                # new table (table file must be
+                # created or opened and truncated)
+                self.stream = open(f, "w+b")
+            else:
+                # tabe file must exist
+                self.stream = open(f, ("r+b", "rb")[bool(readOnly)])
+        else:
+            # a stream
+            self.name = getattr(f, "name", "")
+            self.stream = f
+        if new:
+            # if this is a new table, header will be empty
+            self.header = self.HeaderClass()
+        else:
+            # or instantiated using stream
+            self.header = self.HeaderClass.fromStream(self.stream)
+        self.ignoreErrors = ignoreErrors
+        self._new = bool(new)
+        self._changed = False
+
+    ## properties
+
+    closed = property(lambda self: self.stream.closed)
+    recordCount = property(lambda self: self.header.recordCount)
+    fieldNames = property(
+        lambda self: [_fld.name for _fld in self.header.fields])
+    fieldDefs = property(lambda self: self.header.fields)
+    changed = property(lambda self: self._changed or self.header.changed)
+
+    def ignoreErrors(self, value):
+        """Update `ignoreErrors` flag on the header object and self"""
+        self.header.ignoreErrors = self._ignore_errors = bool(value)
+    ignoreErrors = property(
+        lambda self: self._ignore_errors,
+        ignoreErrors,
+        doc="""Error processing mode for DBF field value conversion
+
+        if set, failing field value conversion will return
+        ``INVALID_VALUE`` instead of raising conversion error.
+
+        """)
+
+    ## protected methods
+
+    def _fixIndex(self, index):
+        """Return fixed index.
+
+        This method fails if index isn't a numeric object
+        (long or int). Or index isn't in a valid range
+        (less or equal to the number of records in the db).
+
+        If ``index`` is a negative number, it will be
+        treated as a negative indexes for list objects.
+
+        Return:
+            Return value is numeric object maning valid index.
+
+        """
+        if not isinstance(index, int):
+            raise TypeError("Index must be a numeric object")
+        if index < 0:
+            # index from the right side
+            # fix it to the left-side index
+            index += len(self) + 1
+        if index >= len(self):
+            raise IndexError("Record index out of range")
+        return index
+
+    ## iterface methods
+
+    def close(self):
+        self.flush()
+        self.stream.close()
+
+    def flush(self):
+        """Flush data to the associated stream."""
+        if self.changed:
+            self.header.setCurrentDate()
+            self.header.write(self.stream)
+            self.stream.flush()
+            self._changed = False
+
+    def indexOfFieldName(self, name):
+        """Index of field named ``name``."""
+        # FIXME: move this to header class
+        names = [f.name for f in self.header.fields]
+        return names.index(name.upper())
+
+    def newRecord(self):
+        """Return new record, which belong to this table."""
+        return self.RecordClass(self)
+
+    def append(self, record):
+        """Append ``record`` to the database."""
+        record.index = self.header.recordCount
+        record._write()
+        self.header.recordCount += 1
+        self._changed = True
+        self._new = False
+
+    def addField(self, *defs):
+        """Add field definitions.
+
+        For more information see `header.DbfHeader.addField`.
+
+        """
+        if self._new:
+            self.header.addField(*defs)
+        else:
+            raise TypeError("At least one record was added, "
+                "structure can't be changed")
+
+    ## 'magic' methods (representation and sequence interface)
+
+    def __repr__(self):
+        return "Dbf stream '%s'\n" % self.stream + repr(self.header)
+
+    def __len__(self):
+        """Return number of records."""
+        return self.recordCount
+
+    def __getitem__(self, index):
+        """Return `DbfRecord` instance."""
+        return self.RecordClass.fromStream(self, self._fixIndex(index))
+
+    def __setitem__(self, index, record):
+        """Write `DbfRecord` instance to the stream."""
+        record.index = self._fixIndex(index)
+        record._write()
+        self._changed = True
+        self._new = False
+
+    #def __del__(self):
+    #    """Flush stream upon deletion of the object."""
+    #    self.flush()
+
+
+def demoRead(filename):
+    _dbf = Dbf(filename, True)
+    for _rec in _dbf:
+        print()
+        print(repr(_rec))
+    _dbf.close()
+
+def demoCreate(filename):
+    _dbf = Dbf(filename, new=True)
+    _dbf.addField(
+        ("NAME", "C", 15),
+        ("SURNAME", "C", 25),
+        ("INITIALS", "C", 10),
+        ("BIRTHDATE", "D"),
+    )
+    for (_n, _s, _i, _b) in (
+        ("John", "Miller", "YC", (1981, 1, 2)),
+        ("Andy", "Larkin", "AL", (1982, 3, 4)),
+        ("Bill", "Clinth", "", (1983, 5, 6)),
+        ("Bobb", "McNail", "", (1984, 7, 8)),
+    ):
+        _rec = _dbf.newRecord()
+        _rec["NAME"] = _n
+        _rec["SURNAME"] = _s
+        _rec["INITIALS"] = _i
+        _rec["BIRTHDATE"] = _b
+        _rec.store()
+    print(repr(_dbf))
+    _dbf.close()
+
+if (__name__=='__main__'):
+    import sys
+    _name = len(sys.argv) > 1 and sys.argv[1] or "county.dbf"
+    demoCreate(_name)
+    demoRead(_name)
+
+# vim: set et sw=4 sts=4 :
diff --git a/tablib/packages/dbfpy3/dbfnew.py b/tablib/packages/dbfpy3/dbfnew.py
new file mode 100644
index 0000000..4051bc6
--- /dev/null
+++ b/tablib/packages/dbfpy3/dbfnew.py
@@ -0,0 +1,182 @@
+#!/usr/bin/python
+""".DBF creation helpers.
+
+Note: this is a legacy interface.  New code should use Dbf class
+    for table creation (see examples in dbf.py)
+
+TODO:
+  - handle Memo fields.
+  - check length of the fields accoring to the
+    `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+
+"""
+"""History (most recent first)
+04-jul-2006 [als]   added export declaration;
+                    updated for dbfpy 2.0
+15-dec-2005 [yc]    define dbf_new.__slots__
+14-dec-2005 [yc]    added vim modeline; retab'd; added doc-strings;
+                    dbf_new now is a new class (inherited from object)
+??-jun-2000 [--]    added by Hans Fiby
+"""
+
+__version__ = "$Revision: 1.4 $"[11:-2]
+__date__ = "$Date: 2006/07/04 08:18:18 $"[7:-2]
+
+__all__ = ["dbf_new"]
+
+from .dbf import *
+from .fields import *
+from .header import *
+from .record import *
+
+class _FieldDefinition(object):
+    """Field definition.
+
+    This is a simple structure, which contains ``name``, ``type``,
+    ``len``, ``dec`` and ``cls`` fields.
+
+    Objects also implement get/setitem magic functions, so fields
+    could be accessed via sequence iterface, where 'name' has
+    index 0, 'type' index 1, 'len' index 2, 'dec' index 3 and
+    'cls' could be located at index 4.
+
+    """
+
+    __slots__ = "name", "type", "len", "dec", "cls"
+
+    # WARNING: be attentive - dictionaries are mutable!
+    FLD_TYPES = {
+        # type: (cls, len)
+        "C": (DbfCharacterFieldDef, None),
+        "N": (DbfNumericFieldDef, None),
+        "L": (DbfLogicalFieldDef, 1),
+        # FIXME: support memos
+        # "M": (DbfMemoFieldDef),
+        "D": (DbfDateFieldDef, 8),
+        # FIXME: I'm not sure length should be 14 characters!
+        # but temporary I use it, cuz date is 8 characters
+        # and time 6 (hhmmss)
+        "T": (DbfDateTimeFieldDef, 14),
+    }
+
+    def __init__(self, name, type, len=None, dec=0):
+        _cls, _len = self.FLD_TYPES[type]
+        if _len is None:
+            if len is None:
+                raise ValueError("Field length must be defined")
+            _len = len
+        self.name = name
+        self.type = type
+        self.len = _len
+        self.dec = dec
+        self.cls = _cls
+
+    def getDbfField(self):
+        "Return `DbfFieldDef` instance from the current definition."
+        return self.cls(self.name, self.len, self.dec)
+
+    def appendToHeader(self, dbfh):
+        """Create a `DbfFieldDef` instance and append it to the dbf header.
+
+        Arguments:
+            dbfh: `DbfHeader` instance.
+
+        """
+        _dbff = self.getDbfField()
+        dbfh.addField(_dbff)
+
+
+class dbf_new(object):
+    """New .DBF creation helper.
+
+    Example Usage:
+
+        dbfn = dbf_new()
+        dbfn.add_field("name",'C',80)
+        dbfn.add_field("price",'N',10,2)
+        dbfn.add_field("date",'D',8)
+        dbfn.write("tst.dbf")
+
+    Note:
+        This module cannot handle Memo-fields,
+        they are special.
+
+    """
+
+    __slots__ = ("fields",)
+
+    FieldDefinitionClass = _FieldDefinition
+
+    def __init__(self):
+        self.fields = []
+
+    def add_field(self, name, typ, len, dec=0):
+        """Add field definition.
+
+        Arguments:
+            name:
+                field name (str object). field name must not
+                contain ASCII NULs and it's length shouldn't
+                exceed 10 characters.
+            typ:
+                type of the field. this must be a single character
+                from the "CNLMDT" set meaning character, numeric,
+                logical, memo, date and date/time respectively.
+            len:
+                length of the field. this argument is used only for
+                the character and numeric fields. all other fields
+                have fixed length.
+                FIXME: use None as a default for this argument?
+            dec:
+                decimal precision. used only for the numric fields.
+
+        """
+        self.fields.append(self.FieldDefinitionClass(name, typ, len, dec))
+
+    def write(self, filename):
+        """Create empty .DBF file using current structure."""
+        _dbfh = DbfHeader()
+        _dbfh.setCurrentDate()
+        for _fldDef in self.fields:
+            _fldDef.appendToHeader(_dbfh)
+
+        _dbfStream = open(filename, "wb")
+        _dbfh.write(_dbfStream)
+        _dbfStream.close()
+
+
+if (__name__=='__main__'):
+    # create a new DBF-File
+    dbfn=dbf_new()
+    dbfn.add_field("name",'C',80)
+    dbfn.add_field("price",'N',10,2)
+    dbfn.add_field("date",'D',8)
+    dbfn.write("tst.dbf")
+    # test new dbf
+    print("*** created tst.dbf: ***")
+    dbft = Dbf('tst.dbf', readOnly=0)
+    print(repr(dbft))
+    # add a record
+    rec=DbfRecord(dbft)
+    rec['name']='something'
+    rec['price']=10.5
+    rec['date']=(2000,1,12)
+    rec.store()
+    # add another record
+    rec=DbfRecord(dbft)
+    rec['name']='foo and bar'
+    rec['price']=12234
+    rec['date']=(1992,7,15)
+    rec.store()
+
+    # show the records
+    print("*** inserted 2 records into tst.dbf: ***")
+    print(repr(dbft))
+    for i1 in range(len(dbft)):
+        rec = dbft[i1]
+        for fldName in dbft.fieldNames:
+            print('%s:\t %s'%(fldName, rec[fldName]))
+        print()
+    dbft.close()
+
+# vim: set et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy3/fields.py b/tablib/packages/dbfpy3/fields.py
new file mode 100644
index 0000000..883d035
--- /dev/null
+++ b/tablib/packages/dbfpy3/fields.py
@@ -0,0 +1,467 @@
+"""DBF fields definitions.
+
+TODO:
+  - make memos work
+"""
+"""History (most recent first):
+26-may-2009 [als]   DbfNumericFieldDef.decodeValue: strip zero bytes
+05-feb-2009 [als]   DbfDateFieldDef.encodeValue: empty arg produces empty date
+16-sep-2008 [als]   DbfNumericFieldDef decoding looks for decimal point
+                    in the value to select float or integer return type
+13-mar-2008 [als]   check field name length in constructor
+11-feb-2007 [als]   handle value conversion errors
+10-feb-2007 [als]   DbfFieldDef: added .rawFromRecord()
+01-dec-2006 [als]   Timestamp columns use None for empty values
+31-oct-2006 [als]   support field types 'F' (float), 'I' (integer)
+                    and 'Y' (currency);
+                    automate export and registration of field classes
+04-jul-2006 [als]   added export declaration
+10-mar-2006 [als]   decode empty values for Date and Logical fields;
+                    show field name in errors
+10-mar-2006 [als]   fix Numeric value decoding: according to spec,
+                    value always is string representation of the number;
+                    ensure that encoded Numeric value fits into the field
+20-dec-2005 [yc]    use field names in upper case
+15-dec-2005 [yc]    field definitions moved from `dbf`.
+"""
+
+__version__ = "$Revision: 1.14 $"[11:-2]
+__date__ = "$Date: 2009/05/26 05:16:51 $"[7:-2]
+
+__all__ = ["lookupFor",] # field classes added at the end of the module
+
+import datetime
+import struct
+import sys
+
+from . import utils
+
+## abstract definitions
+
+class DbfFieldDef(object):
+    """Abstract field definition.
+
+    Child classes must override ``type`` class attribute to provide datatype
+    infromation of the field definition. For more info about types visit
+    `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+
+    Also child classes must override ``defaultValue`` field to provide
+    default value for the field value.
+
+    If child class has fixed length ``length`` class attribute must be
+    overriden and set to the valid value. None value means, that field
+    isn't of fixed length.
+
+    Note: ``name`` field must not be changed after instantiation.
+
+    """
+
+
+    __slots__ = ("name", "decimalCount",
+        "start", "end", "ignoreErrors")
+
+    # length of the field, None in case of variable-length field,
+    # or a number if this field is a fixed-length field
+    length = None
+
+    # field type. for more information about fields types visit
+    # `http://www.clicketyclick.dk/databases/xbase/format/data_types.html`
+    # must be overriden in child classes
+    typeCode = None
+
+    # default value for the field. this field must be
+    # overriden in child classes
+    defaultValue = None
+
+    def __init__(self, name, length=None, decimalCount=None,
+        start=None, stop=None, ignoreErrors=False,
+    ):
+        """Initialize instance."""
+        assert self.typeCode is not None, "Type code must be overriden"
+        assert self.defaultValue is not None, "Default value must be overriden"
+        ## fix arguments
+        if len(name) >10:
+            raise ValueError("Field name \"%s\" is too long" % name)
+        name = str(name).upper()
+        if self.__class__.length is None:
+            if length is None:
+                raise ValueError("[%s] Length isn't specified" % name)
+            length = int(length)
+            if length <= 0:
+                raise ValueError("[%s] Length must be a positive integer"
+                    % name)
+        else:
+            length = self.length
+        if decimalCount is None:
+            decimalCount = 0
+        ## set fields
+        self.name = name
+        # FIXME: validate length according to the specification at
+        # http://www.clicketyclick.dk/databases/xbase/format/data_types.html
+        self.length = length
+        self.decimalCount = decimalCount
+        self.ignoreErrors = ignoreErrors
+        self.start = start
+        self.end = stop
+
+    def __cmp__(self, other):
+        return cmp(self.name, str(other).upper())
+
+    def __hash__(self):
+        return hash(self.name)
+
+    def fromString(cls, string, start, ignoreErrors=False):
+        """Decode dbf field definition from the string data.
+
+        Arguments:
+            string:
+                a string, dbf definition is decoded from. length of
+                the string must be 32 bytes.
+            start:
+                position in the database file.
+            ignoreErrors:
+                initial error processing mode for the new field (boolean)
+
+        """
+        assert len(string) == 32
+        _length = string[16]
+        return cls(utils.unzfill(string)[:11].decode('utf-8'), _length,
+            string[17], start, start + _length, ignoreErrors=ignoreErrors)
+    fromString = classmethod(fromString)
+
+    def toString(self):
+        """Return encoded field definition.
+
+        Return:
+            Return value is a string object containing encoded
+            definition of this field.
+
+        """
+        if sys.version_info < (2, 4):
+            # earlier versions did not support padding character
+            _name = self.name[:11] + "\0" * (11 - len(self.name))
+        else:
+            _name = self.name.ljust(11, '\0')
+        return (
+            _name +
+            self.typeCode +
+            #data address
+            chr(0) * 4 +
+            chr(self.length) +
+            chr(self.decimalCount) +
+            chr(0) * 14
+        )
+
+    def __repr__(self):
+        return "%-10s %1s %3d %3d" % self.fieldInfo()
+
+    def fieldInfo(self):
+        """Return field information.
+
+        Return:
+            Return value is a (name, type, length, decimals) tuple.
+
+        """
+        return (self.name, self.typeCode, self.length, self.decimalCount)
+
+    def rawFromRecord(self, record):
+        """Return a "raw" field value from the record string."""
+        return record[self.start:self.end]
+
+    def decodeFromRecord(self, record):
+        """Return decoded field value from the record string."""
+        try:
+            return self.decodeValue(self.rawFromRecord(record))
+        except:
+            if self.ignoreErrors:
+                return utils.INVALID_VALUE
+            else:
+                raise
+
+    def decodeValue(self, value):
+        """Return decoded value from string value.
+
+        This method shouldn't be used publicly. It's called from the
+        `decodeFromRecord` method.
+
+        This is an abstract method and it must be overridden in child classes.
+        """
+        raise NotImplementedError
+
+    def encodeValue(self, value):
+        """Return str object containing encoded field value.
+
+        This is an abstract method and it must be overriden in child classes.
+        """
+        raise NotImplementedError
+
+## real classes
+
+class DbfCharacterFieldDef(DbfFieldDef):
+    """Definition of the character field."""
+
+    typeCode = "C"
+    defaultValue = b''
+
+    def decodeValue(self, value):
+        """Return string object.
+
+        Return value is a ``value`` argument with stripped right spaces.
+
+        """
+        return value.rstrip(b' ').decode('utf-8')
+
+    def encodeValue(self, value):
+        """Return raw data string encoded from a ``value``."""
+        return str(value)[:self.length].ljust(self.length)
+
+
+class DbfNumericFieldDef(DbfFieldDef):
+    """Definition of the numeric field."""
+
+    typeCode = "N"
+    # XXX: now I'm not sure it was a good idea to make a class field
+    # `defaultValue` instead of a generic method as it was implemented
+    # previously -- it's ok with all types except number, cuz
+    # if self.decimalCount is 0, we should return 0 and 0.0 otherwise.
+    defaultValue = 0
+
+    def decodeValue(self, value):
+        """Return a number decoded from ``value``.
+
+        If decimals is zero, value will be decoded as an integer;
+        or as a float otherwise.
+
+        Return:
+            Return value is a int (long) or float instance.
+
+        """
+        value = value.strip(b' \0')
+        if b'.' in value:
+            # a float (has decimal separator)
+            return float(value)
+        elif value:
+            # must be an integer
+            return int(value)
+        else:
+            return 0
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        _rv = ("%*.*f" % (self.length, self.decimalCount, value))
+        if len(_rv) > self.length:
+            _ppos = _rv.find(".")
+            if 0 <= _ppos <= self.length:
+                _rv = _rv[:self.length]
+            else:
+                raise ValueError("[%s] Numeric overflow: %s (field width: %i)"
+                    % (self.name, _rv, self.length))
+        return _rv
+
+class DbfFloatFieldDef(DbfNumericFieldDef):
+    """Definition of the float field - same as numeric."""
+
+    typeCode = "F"
+
+class DbfIntegerFieldDef(DbfFieldDef):
+    """Definition of the integer field."""
+
+    typeCode = "I"
+    length = 4
+    defaultValue = 0
+
+    def decodeValue(self, value):
+        """Return an integer number decoded from ``value``."""
+        return struct.unpack("<i", value)[0]
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        return struct.pack("<i", int(value))
+
+class DbfCurrencyFieldDef(DbfFieldDef):
+    """Definition of the currency field."""
+
+    typeCode = "Y"
+    length = 8
+    defaultValue = 0.0
+
+    def decodeValue(self, value):
+        """Return float number decoded from ``value``."""
+        return struct.unpack("<q", value)[0] / 10000.
+
+    def encodeValue(self, value):
+        """Return string containing encoded ``value``."""
+        return struct.pack("<q", round(value * 10000))
+
+class DbfLogicalFieldDef(DbfFieldDef):
+    """Definition of the logical field."""
+
+    typeCode = "L"
+    defaultValue = -1
+    length = 1
+
+    def decodeValue(self, value):
+        """Return True, False or -1 decoded from ``value``."""
+        # Note: value always is 1-char string
+        if value == "?":
+            return -1
+        if value in "NnFf ":
+            return False
+        if value in "YyTt":
+            return True
+        raise ValueError("[%s] Invalid logical value %r" % (self.name, value))
+
+    def encodeValue(self, value):
+        """Return a character from the "TF?" set.
+
+        Return:
+            Return value is "T" if ``value`` is True
+            "?" if value is -1 or False otherwise.
+
+        """
+        if value is True:
+            return "T"
+        if value == -1:
+            return "?"
+        return "F"
+
+
+class DbfMemoFieldDef(DbfFieldDef):
+    """Definition of the memo field.
+
+    Note: memos aren't currenly completely supported.
+
+    """
+
+    typeCode = "M"
+    defaultValue = " " * 10
+    length = 10
+
+    def decodeValue(self, value):
+        """Return int .dbt block number decoded from the string object."""
+        #return int(value)
+        raise NotImplementedError
+
+    def encodeValue(self, value):
+        """Return raw data string encoded from a ``value``.
+
+        Note: this is an internal method.
+
+        """
+        #return str(value)[:self.length].ljust(self.length)
+        raise NotImplementedError
+
+
+class DbfDateFieldDef(DbfFieldDef):
+    """Definition of the date field."""
+
+    typeCode = "D"
+    defaultValue = utils.classproperty(lambda cls: datetime.date.today())
+    # "yyyymmdd" gives us 8 characters
+    length = 8
+
+    def decodeValue(self, value):
+        """Return a ``datetime.date`` instance decoded from ``value``."""
+        if value.strip():
+            return utils.getDate(value)
+        else:
+            return None
+
+    def encodeValue(self, value):
+        """Return a string-encoded value.
+
+        ``value`` argument should be a value suitable for the
+        `utils.getDate` call.
+
+        Return:
+            Return value is a string in format "yyyymmdd".
+
+        """
+        if value:
+            return utils.getDate(value).strftime("%Y%m%d")
+        else:
+            return " " * self.length
+
+
+class DbfDateTimeFieldDef(DbfFieldDef):
+    """Definition of the timestamp field."""
+
+    # a difference between JDN (Julian Day Number)
+    # and GDN (Gregorian Day Number). note, that GDN < JDN
+    JDN_GDN_DIFF = 1721425
+    typeCode = "T"
+    defaultValue = utils.classproperty(lambda cls: datetime.datetime.now())
+    # two 32-bits integers representing JDN and amount of
+    # milliseconds respectively gives us 8 bytes.
+    # note, that values must be encoded in LE byteorder.
+    length = 8
+
+    def decodeValue(self, value):
+        """Return a `datetime.datetime` instance."""
+        assert len(value) == self.length
+        # LE byteorder
+        _jdn, _msecs = struct.unpack("<2I", value)
+        if _jdn >= 1:
+            _rv = datetime.datetime.fromordinal(_jdn - self.JDN_GDN_DIFF)
+            _rv += datetime.timedelta(0, _msecs / 1000.0)
+        else:
+            # empty date
+            _rv = None
+        return _rv
+
+    def encodeValue(self, value):
+        """Return a string-encoded ``value``."""
+        if value:
+            value = utils.getDateTime(value)
+            # LE byteorder
+            _rv = struct.pack("<2I", value.toordinal() + self.JDN_GDN_DIFF,
+                (value.hour * 3600 + value.minute * 60 + value.second) * 1000)
+        else:
+            _rv = "\0" * self.length
+        assert len(_rv) == self.length
+        return _rv
+
+
+_fieldsRegistry = {}
+
+def registerField(fieldCls):
+    """Register field definition class.
+
+    ``fieldCls`` should be subclass of the `DbfFieldDef`.
+
+    Use `lookupFor` to retrieve field definition class
+    by the type code.
+
+    """
+    assert fieldCls.typeCode is not None, "Type code isn't defined"
+    # XXX: use fieldCls.typeCode.upper()? in case of any decign
+    # don't forget to look to the same comment in ``lookupFor`` method
+    _fieldsRegistry[fieldCls.typeCode] = fieldCls
+
+
+def lookupFor(typeCode):
+    """Return field definition class for the given type code.
+
+    ``typeCode`` must be a single character. That type should be
+    previously registered.
+
+    Use `registerField` to register new field class.
+
+    Return:
+        Return value is a subclass of the `DbfFieldDef`.
+
+    """
+    # XXX: use typeCode.upper()? in case of any decign don't
+    # forget to look to the same comment in ``registerField``
+    return _fieldsRegistry[chr(typeCode)]
+
+## register generic types
+
+for (_name, _val) in list(globals().items()):
+    if isinstance(_val, type) and issubclass(_val, DbfFieldDef) \
+    and (_name != "DbfFieldDef"):
+        __all__.append(_name)
+        registerField(_val)
+del _name, _val
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy3/header.py b/tablib/packages/dbfpy3/header.py
new file mode 100644
index 0000000..6c0dc4f
--- /dev/null
+++ b/tablib/packages/dbfpy3/header.py
@@ -0,0 +1,273 @@
+"""DBF header definition.
+
+TODO:
+  - handle encoding of the character fields
+    (encoding information stored in the DBF header)
+
+"""
+"""History (most recent first):
+16-sep-2010 [als]   fromStream: fix century of the last update field
+11-feb-2007 [als]   added .ignoreErrors
+10-feb-2007 [als]   added __getitem__: return field definitions
+                    by field name or field number (zero-based)
+04-jul-2006 [als]   added export declaration
+15-dec-2005 [yc]    created
+"""
+
+__version__ = "$Revision: 1.6 $"[11:-2]
+__date__ = "$Date: 2010/09/16 05:06:39 $"[7:-2]
+
+__all__ = ["DbfHeader"]
+
+import io
+import datetime
+import struct
+import time
+import sys
+
+from . import fields
+from .utils import getDate
+
+
+class DbfHeader(object):
+    """Dbf header definition.
+
+    For more information about dbf header format visit
+    `http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_STRUCT`
+
+    Examples:
+        Create an empty dbf header and add some field definitions:
+            dbfh = DbfHeader()
+            dbfh.addField(("name", "C", 10))
+            dbfh.addField(("date", "D"))
+            dbfh.addField(DbfNumericFieldDef("price", 5, 2))
+        Create a dbf header with field definitions:
+            dbfh = DbfHeader([
+                ("name", "C", 10),
+                ("date", "D"),
+                DbfNumericFieldDef("price", 5, 2),
+            ])
+
+    """
+
+    __slots__ = ("signature", "fields", "lastUpdate", "recordLength",
+        "recordCount", "headerLength", "changed", "_ignore_errors")
+
+    ## instance construction and initialization methods
+
+    def __init__(self, fields=None, headerLength=0, recordLength=0,
+        recordCount=0, signature=0x03, lastUpdate=None, ignoreErrors=False,
+    ):
+        """Initialize instance.
+
+        Arguments:
+            fields:
+                a list of field definitions;
+            recordLength:
+                size of the records;
+            headerLength:
+                size of the header;
+            recordCount:
+                number of records stored in DBF;
+            signature:
+                version number (aka signature). using 0x03 as a default meaning
+                "File without DBT". for more information about this field visit
+                ``http://www.clicketyclick.dk/databases/xbase/format/dbf.html#DBF_NOTE_1_TARGET``
+            lastUpdate:
+                date of the DBF's update. this could be a string ('yymmdd' or
+                'yyyymmdd'), timestamp (int or float), datetime/date value,
+                a sequence (assuming (yyyy, mm, dd, ...)) or an object having
+                callable ``ticks`` field.
+            ignoreErrors:
+                error processing mode for DBF fields (boolean)
+
+        """
+        self.signature = signature
+        if fields is None:
+            self.fields = []
+        else:
+            self.fields = list(fields)
+        self.lastUpdate = getDate(lastUpdate)
+        self.recordLength = recordLength
+        self.headerLength = headerLength
+        self.recordCount = recordCount
+        self.ignoreErrors = ignoreErrors
+        # XXX: I'm not sure this is safe to
+        # initialize `self.changed` in this way
+        self.changed = bool(self.fields)
+
+    # @classmethod
+    def fromString(cls, string):
+        """Return header instance from the string object."""
+        return cls.fromStream(io.StringIO(str(string)))
+    fromString = classmethod(fromString)
+
+    # @classmethod
+    def fromStream(cls, stream):
+        """Return header object from the stream."""
+        stream.seek(0)
+        first_32 = stream.read(32)
+        if type(first_32) != bytes:
+            _data = bytes(first_32, sys.getfilesystemencoding())
+        _data = first_32
+        (_cnt, _hdrLen, _recLen) = struct.unpack("<I2H", _data[4:12])
+        #reserved = _data[12:32]
+        _year = _data[1]
+        if _year < 80:
+            # dBase II started at 1980.  It is quite unlikely
+            # that actual last update date is before that year.
+            _year += 2000
+        else:
+            _year += 1900
+        ## create header object
+        _obj = cls(None, _hdrLen, _recLen, _cnt, _data[0],
+            (_year, _data[2], _data[3]))
+        ## append field definitions
+        # position 0 is for the deletion flag
+        _pos = 1
+        _data = stream.read(1)
+        while _data != b'\r':
+            _data += stream.read(31)
+            _fld = fields.lookupFor(_data[11]).fromString(_data, _pos)
+            _obj._addField(_fld)
+            _pos = _fld.end
+            _data = stream.read(1)
+        return _obj
+    fromStream = classmethod(fromStream)
+
+    ## properties
+
+    year = property(lambda self: self.lastUpdate.year)
+    month = property(lambda self: self.lastUpdate.month)
+    day = property(lambda self: self.lastUpdate.day)
+
+    def ignoreErrors(self, value):
+        """Update `ignoreErrors` flag on self and all fields"""
+        self._ignore_errors = value = bool(value)
+        for _field in self.fields:
+            _field.ignoreErrors = value
+    ignoreErrors = property(
+        lambda self: self._ignore_errors,
+        ignoreErrors,
+        doc="""Error processing mode for DBF field value conversion
+
+        if set, failing field value conversion will return
+        ``INVALID_VALUE`` instead of raising conversion error.
+
+        """)
+
+    ## object representation
+
+    def __repr__(self):
+        _rv = """\
+Version (signature): 0x%02x
+        Last update: %s
+      Header length: %d
+      Record length: %d
+       Record count: %d
+ FieldName Type Len Dec
+""" % (self.signature, self.lastUpdate, self.headerLength,
+    self.recordLength, self.recordCount)
+        _rv += "\n".join(
+            ["%10s %4s %3s %3s" % _fld.fieldInfo() for _fld in self.fields]
+        )
+        return _rv
+
+    ## internal methods
+
+    def _addField(self, *defs):
+        """Internal variant of the `addField` method.
+
+        This method doesn't set `self.changed` field to True.
+
+        Return value is a length of the appended records.
+        Note: this method doesn't modify ``recordLength`` and
+        ``headerLength`` fields. Use `addField` instead of this
+        method if you don't exactly know what you're doing.
+
+        """
+        # insure we have dbf.DbfFieldDef instances first (instantiation
+        # from the tuple could raise an error, in such a case I don't
+        # wanna add any of the definitions -- all will be ignored)
+        _defs = []
+        _recordLength = 0
+        for _def in defs:
+            if isinstance(_def, fields.DbfFieldDef):
+                _obj = _def
+            else:
+                (_name, _type, _len, _dec) = (tuple(_def) + (None,) * 4)[:4]
+                _cls = fields.lookupFor(_type)
+                _obj = _cls(_name, _len, _dec,
+                    ignoreErrors=self._ignore_errors)
+            _recordLength += _obj.length
+            _defs.append(_obj)
+        # and now extend field definitions and
+        # update record length
+        self.fields += _defs
+        return _recordLength
+
+    ## interface methods
+
+    def addField(self, *defs):
+        """Add field definition to the header.
+
+        Examples:
+            dbfh.addField(
+                ("name", "C", 20),
+                dbf.DbfCharacterFieldDef("surname", 20),
+                dbf.DbfDateFieldDef("birthdate"),
+                ("member", "L"),
+            )
+            dbfh.addField(("price", "N", 5, 2))
+            dbfh.addField(dbf.DbfNumericFieldDef("origprice", 5, 2))
+
+        """
+        _oldLen = self.recordLength
+        self.recordLength += self._addField(*defs)
+        if not _oldLen:
+            self.recordLength += 1
+            # XXX: may be just use:
+            # self.recordeLength += self._addField(*defs) + bool(not _oldLen)
+        # recalculate headerLength
+        self.headerLength = 32 + (32 * len(self.fields)) + 1
+        self.changed = True
+
+    def write(self, stream):
+        """Encode and write header to the stream."""
+        stream.seek(0)
+        stream.write(self.toString())
+        fields = [_fld.toString() for _fld in self.fields]
+        stream.write(''.join(fields).encode(sys.getfilesystemencoding()))
+        stream.write(b'\x0D')   # cr at end of all header data
+        self.changed = False
+
+    def toString(self):
+        """Returned 32 chars length string with encoded header."""
+        return struct.pack("<4BI2H",
+            self.signature,
+            self.year - 1900,
+            self.month,
+            self.day,
+            self.recordCount,
+            self.headerLength,
+            self.recordLength) + (b'\x00' * 20)
+        #TODO: figure out if bytes(utf-8) is correct here.
+
+    def setCurrentDate(self):
+        """Update ``self.lastUpdate`` field with current date value."""
+        self.lastUpdate = datetime.date.today()
+
+    def __getitem__(self, item):
+        """Return a field definition by numeric index or name string"""
+        if isinstance(item, str):
+            _name = item.upper()
+            for _field in self.fields:
+                if _field.name == _name:
+                    return _field
+            else:
+                raise KeyError(item)
+        else:
+            # item must be field index
+            return self.fields[item]
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy3/record.py b/tablib/packages/dbfpy3/record.py
new file mode 100644
index 0000000..73b6952
--- /dev/null
+++ b/tablib/packages/dbfpy3/record.py
@@ -0,0 +1,266 @@
+"""DBF record definition.
+
+"""
+"""History (most recent first):
+11-feb-2007 [als]   __repr__: added special case for invalid field values
+10-feb-2007 [als]   added .rawFromStream()
+30-oct-2006 [als]   fix record length in .fromStream()
+04-jul-2006 [als]   added export declaration
+20-dec-2005 [yc]    DbfRecord.write() -> DbfRecord._write();
+                    added delete() method.
+16-dec-2005 [yc]    record definition moved from `dbf`.
+"""
+
+__version__ = "$Revision: 1.7 $"[11:-2]
+__date__ = "$Date: 2007/02/11 09:05:49 $"[7:-2]
+
+__all__ = ["DbfRecord"]
+
+import sys
+
+from . import utils
+
+class DbfRecord(object):
+    """DBF record.
+
+    Instances of this class shouldn't be created manualy,
+    use `dbf.Dbf.newRecord` instead.
+
+    Class implements mapping/sequence interface, so
+    fields could be accessed via their names or indexes
+    (names is a preffered way to access fields).
+
+    Hint:
+        Use `store` method to save modified record.
+
+    Examples:
+        Add new record to the database:
+            db = Dbf(filename)
+            rec = db.newRecord()
+            rec["FIELD1"] = value1
+            rec["FIELD2"] = value2
+            rec.store()
+        Or the same, but modify existed
+        (second in this case) record:
+            db = Dbf(filename)
+            rec = db[2]
+            rec["FIELD1"] = value1
+            rec["FIELD2"] = value2
+            rec.store()
+
+    """
+
+    __slots__ = "dbf", "index", "deleted", "fieldData"
+
+    ## creation and initialization
+
+    def __init__(self, dbf, index=None, deleted=False, data=None):
+        """Instance initialiation.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance this record belonogs to.
+            index:
+                An integer record index or None. If this value is
+                None, record will be appended to the DBF.
+            deleted:
+                Boolean flag indicating whether this record
+                is a deleted record.
+            data:
+                A sequence or None. This is a data of the fields.
+                If this argument is None, default values will be used.
+
+        """
+        self.dbf = dbf
+        # XXX: I'm not sure ``index`` is necessary
+        self.index = index
+        self.deleted = deleted
+        if data is None:
+            self.fieldData = [_fd.defaultValue for _fd in dbf.header.fields]
+        else:
+            self.fieldData = list(data)
+
+    # XXX: validate self.index before calculating position?
+    position = property(lambda self: self.dbf.header.headerLength + \
+        self.index * self.dbf.header.recordLength)
+
+    def rawFromStream(cls, dbf, index):
+        """Return raw record contents read from the stream.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance containing the record.
+            index:
+                Index of the record in the records' container.
+                This argument can't be None in this call.
+
+        Return value is a string containing record data in DBF format.
+
+        """
+        # XXX: may be write smth assuming, that current stream
+        # position is the required one? it could save some
+        # time required to calculate where to seek in the file
+        dbf.stream.seek(dbf.header.headerLength +
+            index * dbf.header.recordLength)
+        return dbf.stream.read(dbf.header.recordLength)
+    rawFromStream = classmethod(rawFromStream)
+
+    def fromStream(cls, dbf, index):
+        """Return a record read from the stream.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance new record should belong to.
+            index:
+                Index of the record in the records' container.
+                This argument can't be None in this call.
+
+        Return value is an instance of the current class.
+
+        """
+        return cls.fromString(dbf, cls.rawFromStream(dbf, index), index)
+    fromStream = classmethod(fromStream)
+
+    def fromString(cls, dbf, string, index=None):
+        """Return record read from the string object.
+
+        Arguments:
+            dbf:
+                A `Dbf.Dbf` instance new record should belong to.
+            string:
+                A string new record should be created from.
+            index:
+                Index of the record in the container. If this
+                argument is None, record will be appended.
+
+        Return value is an instance of the current class.
+
+        """
+        return cls(dbf, index, string[0]=="*",
+            [_fd.decodeFromRecord(string) for _fd in dbf.header.fields])
+    fromString = classmethod(fromString)
+
+    ## object representation
+
+    def __repr__(self):
+        _template = "%%%ds: %%s (%%s)" % max([len(_fld)
+            for _fld in self.dbf.fieldNames])
+        _rv = []
+        for _fld in self.dbf.fieldNames:
+            _val = self[_fld]
+            if _val is utils.INVALID_VALUE:
+                _rv.append(_template %
+                    (_fld, "None", "value cannot be decoded"))
+            else:
+                _rv.append(_template % (_fld, _val, type(_val)))
+        return "\n".join(_rv)
+
+    ## protected methods
+
+    def _write(self):
+        """Write data to the dbf stream.
+
+        Note:
+            This isn't a public method, it's better to
+            use 'store' instead publically.
+            Be design ``_write`` method should be called
+            only from the `Dbf` instance.
+
+
+        """
+        self._validateIndex(False)
+        self.dbf.stream.seek(self.position)
+        self.dbf.stream.write(bytes(self.toString(),
+            sys.getfilesystemencoding()))
+        # FIXME: may be move this write somewhere else?
+        # why we should check this condition for each record?
+        if self.index == len(self.dbf):
+            # this is the last record,
+            # we should write SUB (ASCII 26)
+            self.dbf.stream.write(b"\x1A")
+
+    ## utility methods
+
+    def _validateIndex(self, allowUndefined=True, checkRange=False):
+        """Valid ``self.index`` value.
+
+        If ``allowUndefined`` argument is True functions does nothing
+        in case of ``self.index`` pointing to None object.
+
+        """
+        if self.index is None:
+            if not allowUndefined:
+                raise ValueError("Index is undefined")
+        elif self.index < 0:
+            raise ValueError("Index can't be negative (%s)" % self.index)
+        elif checkRange and self.index <= self.dbf.header.recordCount:
+            raise ValueError("There are only %d records in the DBF" %
+                self.dbf.header.recordCount)
+
+    ## interface methods
+
+    def store(self):
+        """Store current record in the DBF.
+
+        If ``self.index`` is None, this record will be appended to the
+        records of the DBF this records belongs to; or replaced otherwise.
+
+        """
+        self._validateIndex()
+        if self.index is None:
+            self.index = len(self.dbf)
+            self.dbf.append(self)
+        else:
+            self.dbf[self.index] = self
+
+    def delete(self):
+        """Mark method as deleted."""
+        self.deleted = True
+
+    def toString(self):
+        """Return string packed record values."""
+#        for (_def, _dat) in zip(self.dbf.header.fields, self.fieldData):
+#            
+
+        return "".join([" *"[self.deleted]] + [
+           _def.encodeValue(_dat)
+            for (_def, _dat) in zip(self.dbf.header.fields, self.fieldData)
+        ])
+
+    def asList(self):
+        """Return a flat list of fields.
+
+        Note:
+            Change of the list's values won't change
+            real values stored in this object.
+
+        """
+        return self.fieldData[:]
+
+    def asDict(self):
+        """Return a dictionary of fields.
+
+        Note:
+            Change of the dicts's values won't change
+            real values stored in this object.
+
+        """
+        return dict([_i for _i in zip(self.dbf.fieldNames, self.fieldData)])
+
+    def __getitem__(self, key):
+        """Return value by field name or field index."""
+        if isinstance(key, int):
+            # integer index of the field
+            return self.fieldData[key]
+        # assuming string field name
+        return self.fieldData[self.dbf.indexOfFieldName(key)]
+
+    def __setitem__(self, key, value):
+        """Set field value by integer index of the field or string name."""
+        if isinstance(key, int):
+            # integer index of the field
+            return self.fieldData[key]
+        # assuming string field name
+        self.fieldData[self.dbf.indexOfFieldName(key)] = value
+
+# vim: et sts=4 sw=4 :
diff --git a/tablib/packages/dbfpy3/utils.py b/tablib/packages/dbfpy3/utils.py
new file mode 100644
index 0000000..856ade8
--- /dev/null
+++ b/tablib/packages/dbfpy3/utils.py
@@ -0,0 +1,170 @@
+"""String utilities.
+
+TODO:
+  - allow strings in getDateTime routine;
+"""
+"""History (most recent first):
+11-feb-2007 [als]   added INVALID_VALUE
+10-feb-2007 [als]   allow date strings padded with spaces instead of zeroes
+20-dec-2005 [yc]    handle long objects in getDate/getDateTime
+16-dec-2005 [yc]    created from ``strutil`` module.
+"""
+
+__version__ = "$Revision: 1.4 $"[11:-2]
+__date__ = "$Date: 2007/02/11 08:57:17 $"[7:-2]
+
+import datetime
+import time
+
+
+def unzfill(str):
+    """Return a string without ASCII NULs.
+
+    This function searchers for the first NUL (ASCII 0) occurance
+    and truncates string till that position.
+
+    """
+    try:
+        return str[:str.index(b'\0')]
+    except ValueError:
+        return str
+
+
+def getDate(date=None):
+    """Return `datetime.date` instance.
+
+    Type of the ``date`` argument could be one of the following:
+        None:
+            use current date value;
+        datetime.date:
+            this value will be returned;
+        datetime.datetime:
+            the result of the date.date() will be returned;
+        string:
+            assuming "%Y%m%d" or "%y%m%dd" format;
+        number:
+            assuming it's a timestamp (returned for example
+            by the time.time() call;
+        sequence:
+            assuming (year, month, day, ...) sequence;
+
+    Additionaly, if ``date`` has callable ``ticks`` attribute,
+    it will be used and result of the called would be treated
+    as a timestamp value.
+
+    """
+    if date is None:
+        # use current value
+        return datetime.date.today()
+    if isinstance(date, datetime.date):
+        return date
+    if isinstance(date, datetime.datetime):
+        return date.date()
+    if isinstance(date, (int, float)):
+        # date is a timestamp
+        return datetime.date.fromtimestamp(date)
+    if isinstance(date, str):
+        date = date.replace(" ", "0")
+        if len(date) == 6:
+            # yymmdd
+            return datetime.date(*time.strptime(date, "%y%m%d")[:3])
+        # yyyymmdd
+        return datetime.date(*time.strptime(date, "%Y%m%d")[:3])
+    if hasattr(date, "__getitem__"):
+        # a sequence (assuming date/time tuple)
+        return datetime.date(*date[:3])
+    return datetime.date.fromtimestamp(date.ticks())
+
+
+def getDateTime(value=None):
+    """Return `datetime.datetime` instance.
+
+    Type of the ``value`` argument could be one of the following:
+        None:
+            use current date value;
+        datetime.date:
+            result will be converted to the `datetime.datetime` instance
+            using midnight;
+        datetime.datetime:
+            ``value`` will be returned as is;
+        string:
+            *** CURRENTLY NOT SUPPORTED ***;
+        number:
+            assuming it's a timestamp (returned for example
+            by the time.time() call;
+        sequence:
+            assuming (year, month, day, ...) sequence;
+
+    Additionaly, if ``value`` has callable ``ticks`` attribute,
+    it will be used and result of the called would be treated
+    as a timestamp value.
+
+    """
+    if value is None:
+        # use current value
+        return datetime.datetime.today()
+    if isinstance(value, datetime.datetime):
+        return value
+    if isinstance(value, datetime.date):
+        return datetime.datetime.fromordinal(value.toordinal())
+    if isinstance(value, (int, float)):
+        # value is a timestamp
+        return datetime.datetime.fromtimestamp(value)
+    if isinstance(value, str):
+        raise NotImplementedError("Strings aren't currently implemented")
+    if hasattr(value, "__getitem__"):
+        # a sequence (assuming date/time tuple)
+        return datetime.datetime(*tuple(value)[:6])
+    return datetime.datetime.fromtimestamp(value.ticks())
+
+
+class classproperty(property):
+    """Works in the same way as a ``property``, but for the classes."""
+
+    def __get__(self, obj, cls):
+        return self.fget(cls)
+
+
+class _InvalidValue(object):
+
+    """Value returned from DBF records when field validation fails
+
+    The value is not equal to anything except for itself
+    and equal to all empty values: None, 0, empty string etc.
+    In other words, invalid value is equal to None and not equal
+    to None at the same time.
+
+    This value yields zero upon explicit conversion to a number type,
+    empty string for string types, and False for boolean.
+
+    """
+
+    def __eq__(self, other):
+        return not other
+
+    def __ne__(self, other):
+        return not (other is self)
+
+    def __bool__(self):
+        return False
+
+    def __int__(self):
+        return 0
+    __long__ = __int__
+
+    def __float__(self):
+        return 0.0
+
+    def __str__(self):
+        return ""
+
+    def __unicode__(self):
+        return ""
+
+    def __repr__(self):
+        return "<INVALID>"
+
+# invalid value is a constant singleton
+INVALID_VALUE = _InvalidValue()
+
+# vim: set et sts=4 sw=4 :