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bpo-40807: Show warnings once from codeop._maybe_compile (GH-20486)

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* bpo-40807: Show warnings once from codeop._maybe_compile

* Move catch_warnings

* news

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
(cherry picked from commit 052d3fc090)

Co-authored-by: Cheryl Sabella <cheryl.sabella@gmail.com>
This commit is contained in:
Miss Islington (bot) 2020-06-04 16:59:44 -07:00 • committed by GitHub
parent e4e5ec18e2
commit 3dfe549bfa
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3 changed files with 19 additions and 8 deletions
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5
Lib/test/test_codeop.py
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@ -303,6 +303,11 @@ class CodeopTests(unittest.TestCase):
self.assertNotEqual(compile_command("a = 1\n", "abc").co_filename,
compile("a = 1\n", "def", 'single').co_filename)
def test_warning(self):
# Test that the warning is only returned once.
with support.check_warnings((".*literal", SyntaxWarning)) as w:
compile_command("0 is 0")
self.assertEqual(len(w.warnings), 1)
if __name__ == "__main__":
unittest.main()