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gh-111488: Changed error message in case of no 'in' keyword after 'for' in cmp (#113656)

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Grigoriev Semyon 2024-01-06 13:27:49 +03:00 • committed by GitHub
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Lib/test/test_syntax.py
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@ -259,6 +259,36 @@ SyntaxError: expected ':'
Traceback (most recent call last):
SyntaxError: invalid syntax
Comprehensions without 'in' keyword:
>>> [x for x if range(1)]
Traceback (most recent call last):
SyntaxError: 'in' expected after for-loop variables
>>> tuple(x for x if range(1))
Traceback (most recent call last):
SyntaxError: 'in' expected after for-loop variables
>>> [x for x() in a]
Traceback (most recent call last):
SyntaxError: cannot assign to function call
>>> [x for a, b, (c + 1, d()) in y]
Traceback (most recent call last):
SyntaxError: cannot assign to expression
>>> [x for a, b, (c + 1, d()) if y]
Traceback (most recent call last):
SyntaxError: 'in' expected after for-loop variables
>>> [x for x+1 in y]
Traceback (most recent call last):
SyntaxError: cannot assign to expression
>>> [x for x+1, x() in y]
Traceback (most recent call last):
SyntaxError: cannot assign to expression
Comprehensions creating tuples without parentheses
should produce a specialized error message: