Test failures testing matplotlib 1.5.1 manylinux wheels

[matthew-brett]

I have automated building of matplotlib manylinux wheels for matplotlib 1.5.1, adding a version of PR #6442 .

The build script is here, and the build matrix is here.

Now I'm testing these wheels on travis at manylinux-testing with test script here.

(Is this the right way to run tests on an installed matplotlib?)

But - I am getting test failures that look unrelated to the manylinux build itself - see failing matplotlib test run.

Would y'all mind casting your eyes over these failures to let me know if they are telling me anything bad about the manylinux build?

[tacaswell]

These tend to mean that there is an import error is those modules

======================================================================
ERROR: Failure: AttributeError ('module' object has no attribute 'test_widgets')
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Traceback (most recent call last):
  File "/home/travis/build/matthew-brett/manylinux-testing/venv/lib/python2.7/site-packages/nose/loader.py", line 407, in loadTestsFromName
    module = resolve_name(addr.module)
  File "/home/travis/build/matthew-brett/manylinux-testing/venv/lib/python2.7/site-packages/nose/util.py", line 322, in resolve_name
    obj = getattr(obj, part)
AttributeError: 'module' object has no attribute 'test_widgets'

These are due to a bug fix in numpy that fixed some small-number rounding see #5950 and the rabbit dragon hole that leads to.

======================================================================
FAIL: matplotlib.tests.test_axes.test_formatter_large_small.test
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/travis/build/matthew-brett/manylinux-testing/venv/lib/python2.7/site-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/travis/build/matthew-brett/manylinux-testing/venv/lib/python2.7/site-packages/matplotlib/testing/decorators.py", line 53, in failer
    result = f(*args, **kwargs)
  File "/home/travis/build/matthew-brett/manylinux-testing/venv/lib/python2.7/site-packages/matplotlib/testing/decorators.py", line 220, in do_test
    '(RMS %(rms).3f)'%err)
ImageComparisonFailure: images not close: /home/travis/build/matthew-brett/manylinux-testing/for_testing/result_images/test_axes/formatter_large_small.png vs. /home/travis/build/matthew-brett/manylinux-testing/for_testing/result_images/test_axes/formatter_large_small-expected.png (RMS 19.050)

[matthew-brett]

Great - just the feedback I needed. Tests are now passing, after installing numpy 1.10.4, mock and sphinx:

• Passing test matrix : https://travis-ci.org/matthew-brett/manylinux-testing/builds/132577898
• Diff to make tests pass : matthew-brett/manylinux-testing@6134f95