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53 lines
918 B
Python
53 lines
918 B
Python
# Calls to PyIter_Next, or direct calls to tp_iternext, on an object
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# which might no longer be an iterable because its 'next' method was
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# removed. These are all variants of Issue3720.
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"""
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Run this script with an argument between 1 and <N> to test for
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different crashes.
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"""
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N = 8
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import sys
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class Foo(object):
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def __iter__(self):
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return self
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def next(self):
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del Foo.next
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return (1, 2)
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def case1():
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list(enumerate(Foo()))
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def case2():
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x, y = Foo()
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def case3():
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filter(None, Foo())
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def case4():
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map(None, Foo(), Foo())
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def case5():
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max(Foo())
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def case6():
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sum(Foo(), ())
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def case7():
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dict(Foo())
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def case8():
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sys.stdout.writelines(Foo())
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# etc...
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if __name__ == '__main__':
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if len(sys.argv) < 2:
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print(__doc__.replace('<N>', str(N)))
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else:
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n = int(sys.argv[1])
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func = globals()['case%d' % n]
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func()
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