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Diffstat (limited to 'Lib/test/test_re.py')
| -rw-r--r-- | Lib/test/test_re.py | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py index 5b71612..7a74141 100644 --- a/Lib/test/test_re.py +++ b/Lib/test/test_re.py @@ -224,6 +224,8 @@ class ReTests(unittest.TestCase): self.checkPatternError('(?P<a>)(?P<a>)', "redefinition of group name 'a' as group 2; " "was group 1") + self.checkPatternError('(?P<a>(?P=a))', + "cannot refer to an open group", 10) self.checkPatternError('(?Pxy)', 'unknown extension ?Px') self.checkPatternError('(?P<a>)(?P=a', 'missing ), unterminated name', 11) self.checkPatternError('(?P=', 'missing group name', 4) |