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Support Python 3.15 exception message changes #240

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Merged
davidhalter merged 1 commit into from
Jul 29, 2026
+4 −1
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Support Python 3.15 exception message changes #240

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5 changes: 4 additions & 1 deletion parso/python/errors.py
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Original file line number Diff line number Diff line change
Expand Up @@ -973,7 +973,10 @@ def is_issue(self, node):
continue

if p.name.value in param_names:
message = "duplicate argument '%s' in function definition"
if sys.version_info[:2] < (3, 15):
message = "duplicate argument '%s' in function definition"
else:
message = "duplicate parameter '%s' in function definition"
self.add_issue(p.name, message=message % p.name.value)
param_names.add(p.name.value)

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