[New-bugs-announce] [issue38964] Output of syntax error in f-string contains wrong filename

[Erik Cederstrand]

New submission from Erik Cederstrand <erik at cederstrand.dk>:

When I have a normal syntax error in a file, Python reports the filename in the exception output:

$ cat syntax_error.py 
0x=5

$ python3.8 syntax_error.py 
  File "syntax_error.py", line 1
    0x=5
     ^
SyntaxError: invalid hexadecimal literal


But if the syntax error is inside an f-string, Python reports 'File "<fstring>"' instead of the actual filename in the exception output.

$ cat syntax_error_in_fstring.py 
f'This is a syntax error: {0x=5}'

$ python3.8 syntax_error_in_fstring.py 
  File "<fstring>", line 1
SyntaxError: invalid hexadecimal literal

----------
messages: 357777
nosy: Erik Cederstrand
priority: normal
severity: normal
status: open
title: Output of syntax error in f-string contains wrong filename
type: behavior
versions: Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38964>
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