[New-bugs-announce] [issue41084] Signify that a SyntaxError comes from an fstring in the error message

[Lysandros Nikolaou]

New submission from Lysandros Nikolaou <lisandrosnik at gmail.com>:

It's relatively easy to identify if a SyntaxError occurs when parsing an fstring expression or not. The idea is to slightly change the error message to start with "f-string: " when it does (in the same way in which SyntaxError messages are produced by the hand-written fstring parser). I have a working PR that produces the following:

$ cat a.py
f'{a $ b}'
$ ./python.exe a.py
  File "/Users/lysnikolaou/Repositories/cpython/a.py", line 1
    (a $ b)
       ^
SyntaxError: f-string: invalid syntax

Thoughts?

----------
components: Interpreter Core
messages: 372134
nosy: eric.smith, gvanrossum, lys.nikolaou, pablogsal
priority: normal
severity: normal
status: open
title: Signify that a SyntaxError comes from an fstring in the error message
type: enhancement
versions: Python 3.10, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41084>
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