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gh-131831: Implement PEP 758 – Allow except and except* expressions without parentheses (#131833)

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Pablo Galindo Salgado 2025-04-01 20:04:56 +01:00 • committed by GitHub
parent 053c285f6b
commit c2ac662f28
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7 changed files with 381 additions and 270 deletions
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38
Lib/test/test_syntax.py
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@ -1667,28 +1667,14 @@ Make sure that the old "raise X, Y[, Z]" form is gone:
SyntaxError: invalid syntax
Check that an multiple exception types with missing parentheses
raise a custom exception
>>> try:
... pass
... except A, B:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
>>> try:
... pass
... except A, B, C:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
raise a custom exception only when using 'as'
>>> try:
... pass
... except A, B, C as blech:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
SyntaxError: multiple exception types must be parenthesized when using 'as'
>>> try:
... pass
@ -1697,29 +1683,15 @@ raise a custom exception
... finally:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
SyntaxError: multiple exception types must be parenthesized when using 'as'
>>> try:
... pass
... except* A, B:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
>>> try:
... pass
... except* A, B, C:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
>>> try:
... pass
... except* A, B, C as blech:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
SyntaxError: multiple exception types must be parenthesized when using 'as'
>>> try:
... pass
@ -1728,7 +1700,7 @@ raise a custom exception
... finally:
... pass
Traceback (most recent call last):
SyntaxError: multiple exception types must be parenthesized
SyntaxError: multiple exception types must be parenthesized when using 'as'
Custom exception for 'except*' without an exception type