Message 409752 - Python tracker

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Author	eric.smith
Recipients	Delengowski, eric.smith, lys.nikolaou, pablogsal
Date	2022-01-05.11:29:25
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1641382165.52.0.35997828488.issue46260@roundup.psfhosted.org>
In-reply-to

Content
In fstring_find_expr, the code[0] that's checking for parens, braces, and brackets detects the closing paren without a matching open paren. The error message isn't incorrect: if you added a matching open paren the code would compile: >>> foo=lambda:0 >>> f'{foo()}' '0' So while the error might not be intuitive, it's not wrong. 0: https://github.com/python/cpython/blob/cae55542d23e606dde9819d5dadd7430085fcc77/Parser/string_parser.c#L664d

In fstring_find_expr, the code[0] that's checking for parens, braces, and brackets detects the closing paren without a matching open paren.

The error message isn't incorrect: if you added a matching open paren the code would compile:
>>> foo=lambda:0
>>> f'{foo()}'
'0'

So while the error might not be intuitive, it's not wrong.

0: https://github.com/python/cpython/blob/cae55542d23e606dde9819d5dadd7430085fcc77/Parser/string_parser.c#L664d

History
Date	User	Action	Args
2022-01-05 11:29:25	eric.smith	set	recipients: + eric.smith, lys.nikolaou, pablogsal, Delengowski
2022-01-05 11:29:25	eric.smith	set	messageid: <1641382165.52.0.35997828488.issue46260@roundup.psfhosted.org>
2022-01-05 11:29:25	eric.smith	link	issue46260 messages
2022-01-05 11:29:25	eric.smith	create