- support for cdecimal

- add --with-cdecimal flag to tests, monkeypatches cdecimal in
- fix mssql/pyodbc.py to not use private '_int' accessor in decimal conversion
routines
- pyodbc version 2.1.8 is needed for cdecimal in any case as
previous versions also called '_int', 2.1.8 adds the same string
logic as our own dialect, so that logic is skipped for modern
pyodbc version
- make the imports for "Decimal" consistent across the whole lib.  not sure
yet how we should be importing "Decimal" or what the best way forward
is that would allow a clean user-invoked swap of cdecimal; for now,
added docs suggesting a global monkeypatch - the two decimal libs
are not compatible with each other so any chance of mixing produces
serious issues.  adding adapters to DBAPIs tedious and adds in-python
overhead.  suggestions welcome on how we should be doing
Decimal/cdecimal.

1 files changed, 2 insertions, 2 deletions

diff --git a/test/sql/test_functions.py b/test/sql/test_functions.py
index 396eaaf9b..0fb2ca5f7 100644
--- a/test/sql/test_functions.py
+++ b/test/sql/test_functions.py
@@ -10,7 +10,7 @@ from sqlalchemy import types as sqltypes
 from test.lib import *
 from sqlalchemy.sql.functions import GenericFunction
 from test.lib.testing import eq_
-from decimal import Decimal as _python_Decimal
+from sqlalchemy.util.compat import decimal
 from test.lib import testing
 from sqlalchemy.databases import *
 
@@ -107,7 +107,7 @@ class CompileTest(TestBase, AssertsCompiledSQL):
                             ((datetime.date(2007, 10, 5), 
                                 datetime.date(2005, 10, 15)), sqltypes.Date),
                             ((3, 5), sqltypes.Integer),
-                            ((_python_Decimal(3), _python_Decimal(5)), sqltypes.Numeric),
+                            ((decimal.Decimal(3), decimal.Decimal(5)), sqltypes.Numeric),
                             (("foo", "bar"), sqltypes.String),
                             ((datetime.datetime(2007, 10, 5, 8, 3, 34), 
                                 datetime.datetime(2005, 10, 15, 14, 45, 33)), sqltypes.DateTime)