bpo-41520: codeop no longer ignores SyntaxWarning (GH-21838)
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0e95bbf085
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369a1cbdee
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@ -84,9 +84,11 @@ def _maybe_compile(compiler, source, filename, symbol):
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except SyntaxError:
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pass
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# Suppress warnings after the first compile to avoid duplication.
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# Catch syntax warnings after the first compile
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# to emit SyntaxWarning at most once.
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with warnings.catch_warnings():
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warnings.simplefilter("ignore")
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warnings.simplefilter("error", SyntaxWarning)
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try:
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code1 = compiler(source + "\n", filename, symbol)
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except SyntaxError as e:
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@ -4,6 +4,7 @@
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"""
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import sys
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import unittest
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import warnings
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from test import support
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from test.support import warnings_helper
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@ -310,5 +311,11 @@ class CodeopTests(unittest.TestCase):
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compile_command("0 is 0")
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self.assertEqual(len(w.warnings), 1)
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# bpo-41520: check SyntaxWarning treated as an SyntaxError
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with self.assertRaises(SyntaxError):
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warnings.simplefilter('error', SyntaxWarning)
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compile_command('1 is 1\n', symbol='exec')
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if __name__ == "__main__":
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unittest.main()
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@ -0,0 +1 @@
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Fix :mod:`codeop` regression: it no longer ignores :exc:`SyntaxWarning`.
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