Nested Scopes in Idle/PythonWin

[Jeremy Hylton]

>>>>> "GC" == Greg Chapman <glc at well.com> writes:

  GC> On 22 Apr 2001 15:48:51 -0000, Steve Holden wrote:
  >> Are you saying that IDLE won't correctly handle modules
  >> containing
  >>
  >> from __future__ import nested_scopes?
  >>

  GC> No, I'm talking about the interactive interpreter:

  GC> Python 2.1 (#15, Apr 16 2001, 18:25:49) [MSC 32 bit (Intel)] on win32
  GC> Type "copyright", "credits" or "license" for more information.
  GC> IDLE 0.8 -- press F1 for help
  GC> >>> def make_adder(x):
  GC> 	return lambda y: x+y
  GC> SyntaxError: local name 'x' in 'make_adder' shadows use of 'x' as global in
  GC> nested scope 'lambda' (<pyshell#1>, line 1)

You didn't tell the interpreter that you wanted to use nested scopes.

>>> from __future__ import nested_scopes
>>> def make_adder(x):
...	return lambda y: x + y
... 
>>> 

Jeremy