mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-31 05:58:33 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 7

Issue #27999: Make "global after use" a SyntaxError, and ditto for nonlocal.

Browse source 
Patch by Ivan Levkivskyi.
This commit is contained in:
Guido van Rossum 2016-09-09 09:36:26 -07:00
parent 95e502e7a6
commit 6cff8744a0
4 changed files with 59 additions and 71 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Lib/test/test_syntax.py
View file

@ -366,7 +366,23 @@ build. The number of blocks must be greater than CO_MAXBLOCKS. SF #1565514
...
SyntaxError: too many statically nested blocks
Misuse of the nonlocal statement can lead to a few unique syntax errors.
Misuse of the nonlocal and global statement can lead to a few unique syntax errors.
>>> def f():
... x = 1
... global x
Traceback (most recent call last):
...
SyntaxError: name 'x' is assigned to before global declaration
>>> def f():
... x = 1
... def g():
... print(x)
... nonlocal x
Traceback (most recent call last):
...
SyntaxError: name 'x' is used prior to nonlocal declaration
>>> def f(x):
... nonlocal x