cython

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__doc__ = u"""
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>>> import sys
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>>> def test_py():
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...   try:
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...     raise AttributeError
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...   except AttributeError:
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...     print(sys.exc_info()[0] == AttributeError or sys.exc_info()[0])
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...   print(sys.exc_info()[0] is None  or  sys.exc_info()[0])
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>>> print(sys.exc_info()[0]) # 0
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None
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>>> test_py()
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True
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True
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>>> print(sys.exc_info()[0]) # test_py()
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None
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>>> test_c()
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True
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True
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>>> print(sys.exc_info()[0]) # test_c()
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None
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"""
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import sys
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def test_c():
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    try:
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        raise AttributeError
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    except AttributeError:
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        print(sys.exc_info()[0] == AttributeError or sys.exc_info()[0])
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    print(sys.exc_info()[0] is None or sys.exc_info()[0])
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