bpo-43797: Improve syntax error for invalid comparisons (#25317)

* bpo-43797: Improve syntax error for invalid comparisons

* Update Lib/test/test_fstring.py

Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>

* Apply review comments

* can't -> cannot

Co-authored-by: Guido van Rossum <gvanrossum@gmail.com>
This commit is contained in:
Pablo Galindo 2021-04-12 16:59:30 +01:00 committed by GitHub
parent 2459b92a4d
commit b86ed8e3bb
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12 changed files with 1375 additions and 779 deletions

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@ -349,27 +349,27 @@ Now some general starred expressions (all fail).
>>> (*x),y = 1, 2 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
SyntaxError: cannot use starred expression here
>>> (((*x))),y = 1, 2 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
SyntaxError: cannot use starred expression here
>>> z,(*x),y = 1, 2, 4 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
SyntaxError: cannot use starred expression here
>>> z,(*x) = 1, 2 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
SyntaxError: cannot use starred expression here
>>> ((*x),y) = 1, 2 # doctest:+ELLIPSIS
Traceback (most recent call last):
...
SyntaxError: can't use starred expression here
SyntaxError: cannot use starred expression here
Some size constraints (all fail.)