[issue27100] Attempting to use class with both __enter__ & __exit__ undefined yields __exit__ attribute error

[Martin Panter]

Martin Panter added the comment:

The tests changes also produce a DeprecationWarning:

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ERROR: testEnterAttributeError1 (test.test_with.FailureTestCase)
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Traceback (most recent call last):
  File "/home/proj/python/cpython/Lib/test/test_with.py", line 120, in testEnterAttributeError1
    self.assertRaisesRegexp(AttributeError, '__enter__', fooLacksEnter)
  File "/home/proj/python/cpython/Lib/unittest/case.py", line 1311, in deprecated_func
    DeprecationWarning, 2)
DeprecationWarning: Please use assertRaisesRegex instead.

The fix is simple and just affects the tests, but since most people don’t seem to worry about warnings, I guess this can wait for 3.6 to be released before committing the fix.

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Added file: http://bugs.python.org/file45618/regexp-deprecated.patch

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<http://bugs.python.org/issue27100>
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