| Commit message (Collapse) | Author | Age | Files | Lines |
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Now that Python < 2.6 is no longer supported we can use the errstate
context manager in places where constructs like
```
old = seterr(invalid='ignore')
try:
blah
finally:
seterr(**old)
```
were used.
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The numarray and oldnumeric modules are deprecated. This is a bit tricky
as raising a DeprecationWarning on import causes an error when tests are
run. To deal with that, a ModuleDeprecationWarning class is added to
numpy and NoseTester is modified to ignore that warning during testing.
Closes #2905
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specialize the sqrt ufunc for float and double and vectorize it using
SSE2.
improves performance by 4/2 for float/double if one is not memory bound
due to non-cached data.
performance is always better on all tested machines (amd phenom X2,
intel xeon 5xxx/7xxx, core2duo, corei7)
This version will not set errno on invalid input, but numpy only checks
the fpu flags so the behavior is the same.
In principle the compiler could autovectorize it when setting ffast-math
(for no errno) and specializing the loop for the vectorizable strides
and giving it some hints (restrict, __builtin_assume_aligned, etc.),
but its simpler and more reliable to simply vectorize it by hand.
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Setuptools tends to set +x to the installed test scripts, which makes
numpy.test() to not run any tests. Having --exe always enabled is not
problematic because only files matching 'test_*.py' are looked into.
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Python 3 removes the builtin types from the types module. The types
fixer replaces such references with the builtin types where possible
and also takes care of some special cases:
types.TypeNone <- type(None)
types.NotImplementedType <- type(NotImplemented)
types.EllipsisType <- type(Ellipsis)
The only two tricky substitutions are
types.StringType <- bytes
types.LongType <- int
These are fixed up to support both Python 3 and Python 2 code by
importing the long and bytes types from numpy.compat.
Closes #3240.
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2to3: Apply basestring fixer.
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The basestring class is not defined in Python 3 and the fixer replaces
it with str. In order to have a common code base we define basestring in
numpy/compat/py3k.py to be str when the Python version is >= 3,
otherwise basestring and import it where needed. That works for most
cases, but there are a few files where the version dependent define
needs to be in the file.
Closes #3042.
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The line feed is annoying as it makes Nose's verbose test output not
print one line per one test.
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In Python 3 `map` is an iterator while in Python 2 it returns a list.
The simple fix applied by the fixer is to inclose all instances of map
with `list(...)`. This is not needed in all cases, and even where
appropriate list comprehensions may be preferred for their clarity.
Consequently, this patch attempts to use list comprehensions where it
makes sense.
When the mapped function has two arguments there is another problem that
can arise. In Python 3 map stops execution when the shortest argument
list is exhausted, while in Python 2 it stops when the longest argument
list is exhausted. Consequently the two argument case might need special
care. However, we have been running Python3 converted versions of numpy
since 1.5 without problems, so it is probably not something that affects
us.
Closes #3068
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This replaces python backtics with repr(...). The backtics were mostly
used to generate strings for printing with a string format and it is
tempting to replace `'%s' % repr(x)` with `'%r' % x`. That would work
except where `x` happened to be a tuple or a dictionary but, because it
would be significant work to guarantee that and because there are not
many places where backtics are used, the safe path is to let the repr
replacements stand.
Closes #3083.
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Add `print_function` to all `from __future__ import ...` statements
and use the python3 print function syntax everywhere.
Closes #3078.
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2to3: Apply `imports` fixer.
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The `imports` fixer deals with the standard packages that have been
renamed, removed, or methods that have moved.
cPickle -- removed, use pickle
commands -- removed, getoutput, getstatusoutput moved to subprocess
urlparse -- removed, urlparse moved to urllib.parse
cStringIO -- removed, use StringIO or io.StringIO
copy_reg -- renamed copyreg
_winreg -- renamed winreg
ConfigParser -- renamed configparser
__builtin__ -- renamed builtins
In the case of `cPickle`, it is imported as `pickle` when python < 3 and
performance may be a consideration, but otherwise plain old `pickle` is
used.
Dealing with `StringIO` is a bit tricky. There is an `io.StringIO`
function in the `io` module, available since Python 2.6, but it expects
unicode whereas `StringIO.StringIO` expects ascii. The Python 3
equivalent is then `io.BytesIO`. What I have done here is used BytesIO
for anything that is emulating a file for testing purposes. That is more
explicit than using a redefined StringIO as was done before we dropped
support for Python 2.4 and 2.5.
Closes #3180.
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DOC: Formatting fixes using regex
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also other spacing or formatting mistakes
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The new import `absolute_import` is added the `from __future__ import`
statement and The 2to3 `import` fixer is run to make the imports
compatible. There are several things that need to be dealt with to make
this work.
1) Files meant to be run as scripts run in a different environment than
files imported as part of a package, and so changes to those files need
to be skipped. The affected script files are:
* all setup.py files
* numpy/core/code_generators/generate_umath.py
* numpy/core/code_generators/generate_numpy_api.py
* numpy/core/code_generators/generate_ufunc_api.py
2) Some imported modules are not available as they are created during
the build process and consequently 2to3 is unable to handle them
correctly. Files that import those modules need a bit of extra work.
The affected files are:
* core/__init__.py,
* core/numeric.py,
* core/_internal.py,
* core/arrayprint.py,
* core/fromnumeric.py,
* numpy/__init__.py,
* lib/npyio.py,
* lib/function_base.py,
* fft/fftpack.py,
* random/__init__.py
Closes #3172
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In python3 range is an iterator and `xrange` has been removed. This has
two consequence for code:
1) Where a list is needed `list(range(...))` must be used.
2) `xrange` must be replaced by `range`
Both of these changes also work in python2 and this patch makes both.
There are three places fixed that do not need it, but I left them in
so that the result would be `xrange` clean.
Closes #3092
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2to3: Put `from __future__ import division` in every python file.
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This should be harmless, as we already are division clean. However,
placement of this import takes some care. In the future a script
can be used to append new features without worry, at least until
such time as it exceeds a single line. Having that ability will
make it easier to deal with absolute imports and printing updates.
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2to3: Apply `methodattrs` fixes.
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Replaces old style `f.im_func` and `f.im_class` method attributes
with `f.__func__` and `f.__class__`. Closes #3070.
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2to3: Apply `filter` fixes. Closes #3053.
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2to3 does a lot of list(filter(...)) sort of thing which can be
avoided by using list comprehensions instead of filters. This
also seems to clarify the code to a considerable degree.
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Generally, this involves using list comprehension, or explicit list
construction as `filter` is an iterator in Python 3.
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2to3: Fix callable.
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2to3: Apply `funcattrs` fixer. Closes #3058.
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This replaces the `b.func_xxxx` with newer `__xxxx__` attribute names
For example, `f.__name__` replaces `f.func_name`
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This changes the `exec` command to the `exec` function.
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Example: except ValueError,msg: -> except ValueError as msg:
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These references were in MANIFEST.in, doc/summarize.py, release.sh, and
numpy/testing/noseclasses.py and involved scons files that have been
removed, mostly setupscons.py and setupsconsegg.py that were in the top
level.
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This removes files and code supporting scons builds. After this change
numpy will only support builds using distutils or bento. The removal of
scons has been discussed on the list several times and a decision has been
made that scons support is no longer needed. This was originally discussed
for numpy 1.7 and because the distutils and bento methods are still
available we are skipping the usual deprecation period.
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There a resetwarnings() call, so need to add back these filters.
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1) New function assert_no_warnings
2) Make assert_warns and assert_no_warnings pass through the
function's return value on success, so that it can be checked as
well.
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[FIX] Make np.random.shuffle less brain-dead
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The logic in np.random.shuffle was... not very sensible. Fixes trac
ticket #2074.
This patch also exposes a completely unrelated issue in
numpy.testing. Filed as Github issue #347 and marked as knownfail for
now.
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The original masked-NA-NEP branch contained a large number of changes
in addition to the core NA support. For example:
- ufunc.__call__ support for where= argument
- nditer support for arbitrary masks (in support of where=)
- ufunc.reduce support for simultaneous reduction over multiple axes
- a new "array assignment API"
- ndarray.diagonal() returning a view in all cases
- bug-fixes in __array_priority__ handling
- datetime test changes
etc. There's no consensus yet on what should be done with the
maskna-related part of this branch, but the rest is generally useful
and uncontroversial, so the goal of this branch is to identify exactly
which code changes are involved in maskna support.
The basic strategy used to create this patch was:
- Remove the new masking-related fields from ndarray, so no arrays
are masked
- Go through and remove all the code that this makes
dead/inaccessible/irrelevant, in a largely mechanical fashion. So
for example, if I saw 'if (PyArray_HASMASK(a)) { ... }' then that
whole block was obviously just dead code if no arrays have masks,
and I removed it. Likewise for function arguments like skipna that
are useless if there aren't any NAs to skip.
This changed the signature of a number of functions that were newly
exposed in the numpy public API. I've removed all such functions from
the public API, since releasing them with the NA-less signature in 1.7
would create pointless compatibility hassles later if and when we add
back the NA-related functionality. Most such functions are removed by
this commit; the exception is PyArray_ReduceWrapper, which requires
more extensive surgery, and will be handled in followup commits.
I also removed the new ndarray.setasflat method. Reason: a comment
noted that the only reason this was added was to allow easier testing
of one branch of PyArray_CopyAsFlat. That branch is now the main
branch, so that isn't an issue. Nonetheless this function is arguably
useful, so perhaps it should have remained, but I judged that since
numpy's API is already hairier than we would like, it's not a good
idea to add extra hair "just in case". (Also AFAICT the test for this
method in test_maskna was actually incorrect, as noted here:
https://github.com/njsmith/numpyNEP/blob/master/numpyNEP.py
so I'm not confident that it ever worked in master, though I haven't
had a chance to follow-up on this.)
I also removed numpy.count_reduce_items, since without skipna it
became trivial.
I believe that these are the only exceptions to the "remove dead code"
strategy.
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The --cover-inclusive argument means that coverage.py tries to include every
single .py file in the source tree in the coverage report. This leads to test
errors, because it tries to import files like setupscons.py (which will of
course directly fail for anyone not having numscons installed).
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Warnings show up when a directory with the same name as a Python file or
compiled extension is seen which doesn't have an __init__.py file in it. This
situation is very common, for example in SciPy where many extensions are
created from source files located under a directory with the same name.
This filter is located within a context manager, so only filters when running
tests.
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Also document that behavior has to be switched for a release, and remove
comments on turning on deprecation warnings that don't apply anymore.
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The default is set to (RuntimeWarning, DeprecationWarning), and
the intent is to leave it as this on master, but change it to ()
immediately after branching for 1.7 in that branch.
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RegressionWarning
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