40 lines
757 B
Python
40 lines
757 B
Python
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"""Verify that warnings are issued for global statements following use"""
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from test_support import check_syntax
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import warnings
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warnings.filterwarnings("error", category=SyntaxWarning, module=__name__)
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def compile_and_catch_warning(text):
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try:
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compile(text, "<test code>", "exec")
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except SyntaxWarning, msg:
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print "got SyntaxWarning as expected"
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else:
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print "expected SyntaxWarning"
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prog_text_1 = """
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def wrong1():
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a = 1
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b = 2
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global a
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global b
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"""
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compile_and_catch_warning(prog_text_1)
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prog_text_2 = """
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def wrong2():
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print x
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global x
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"""
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compile_and_catch_warning(prog_text_2)
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prog_text_3 = """
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def wrong3():
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print x
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x = 2
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global x
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"""
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compile_and_catch_warning(prog_text_3)
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