[issue9509] argparse FileType raises ugly exception for missing file

[SilentGhost]

SilentGhost <michael.mischurow+bpo at gmail.com> added the comment:

Ammended akira's patch for Lib/test/test_argparse.py to include suggested in review changes: with statement, import statement

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Added file: http://bugs.python.org/file19815/test_argparse.py.diff

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