[New-bugs-announce] [issue43017] Improve error message in the parser when using un-parenthesised tuples in comprehensions

[Pablo Galindo Salgado]

New submission from Pablo Galindo Salgado <pablogsal at gmail.com>:

I have seen this confusion many users over the years. Instead of showing:

❯ python -c '[x,z for x,y in something]'
  File "<string>", line 1
    [x,z for x,y in something]
         ^
SyntaxError: invalid syntax

We can show:

❯ ./python -c '[x,z for x,y in something]'
  File "<string>", line 1
    [x,z for x,y in something]
     ^
SyntaxError: did you forgot parentheses around the comprehension target?

----------
messages: 385586
nosy: pablogsal
priority: normal
severity: normal
status: open
title: Improve error message in the parser when using un-parenthesised tuples in comprehensions

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43017>
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