bpo-44456: Improve the syntax error when mixing keyword and positional patterns by pablogsal · Pull Request #26793 · python/cpython · GitHub
Skip to content

bpo-44456: Improve the syntax error when mixing keyword and positional patterns #26793

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
pablogsal merged 1 commit into from
Jun 24, 2021
Merged

bpo-44456: Improve the syntax error when mixing keyword and positional patterns #26793

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions Grammar/python.gram
View file
Open in desktop
24 changes: 24 additions & 0 deletions Lib/test/test_syntax.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1240,6 +1240,30 @@
... ...
Traceback (most recent call last):
SyntaxError: invalid pattern target

>>> match ...:
... case Foo(z=1, y=2, x):
... ...
Traceback (most recent call last):
SyntaxError: positional patterns follow keyword patterns

>>> match ...:
... case Foo(a, z=1, y=2, x):
... ...
Traceback (most recent call last):
SyntaxError: positional patterns follow keyword patterns

>>> match ...:
... case Foo(z=1, x, y=2):
... ...
Traceback (most recent call last):
SyntaxError: positional patterns follow keyword patterns

>>> match ...:
... case C(a=b, c, d=e, f, g=h, i, j=k, ...):
... ...
Traceback (most recent call last):
SyntaxError: positional patterns follow keyword patterns
"""

import re
Expand Down
2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Core and Builtins/2021-06-18-22-08-25.bpo-44456.L0Rhko.rst
View file
Open in desktop
Loading