[Python-Dev] nonlocal x = value

Stefan Behnel stefan_ml at behnel.de
Fri Dec 17 08:19:07 CET 2010


it seems that Py3 doesn't support setting a "nonlocal" value as part of the 
"nonlocal" command

     Python 3.2a4+ (py3k:86480, Nov 16 2010, 16:43:22)
     [GCC 4.4.3] on linux2
     Type "help", "copyright", "credits" or "license" for more information.
     >>> def x():
     ...   y = 5
     ...   def f():
     ...     nonlocal y = 6
       File "<stdin>", line 4
         nonlocal y = 6
     SyntaxError: invalid syntax

even though the PEP clearly describes this feature.


Either the PEP or the implementation should be updated. Personally, I think 
the PEP should be changed as I think that the syntax complicates the 
grammar more than it's worth. Also, the moratorium applies here, given that 
Py3.1 does not implement this.



More information about the Python-Dev mailing list