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This replaces code of the pattern
```
fd, name = tempfile.mkstemp(...)
os.close(fd)
try:
do stuff with name
finally:
os.remove(name)
```
with
```
with temppath() as name:
do stuff with name
```
A few more complicated cases are also handled. The remains some
particularly gnarly code the could probably be refactored to use
temppath, but that is a more demanding project.
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* use SkipTest in numpy tests instead of importing it from nose
* add a KnownFailureException as an alias for KnownFailureTest
(the former is preferred, but the latter is kept for backcompat)
* rename the KnownFailure nose plugin into KnownFailurePlugin,
and keep the old name for backcompat
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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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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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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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Example: except ValueError,msg: -> except ValueError as msg:
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.f2py_f2cmap messages.
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compile yet, though, as the C code is not Py3 compatible)
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Rewrite F2Py's test suite, so that it is run as a part of Numpy's tests.
These tests require compiling extension modules on-the-fly, so I added
a small helper module for that.
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