Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment)

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From	Joshua Landau <joshua.landau.ws@gmail.com>
Date	Mon, 24 Jun 2013 21:19:01 +0100
Subject	Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment)
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Here's a little test to make sure you understand (this is one of the
most confusing parts of Python's closures in my opinion):

foo = "I'm foo!"

def working():
    print(foo)

def broken():
    print(foo)

    if False: # There's no way this could cause a problem!
        foo = "This will *never* happen"

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What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) pablobarhamalzas@gmail.com - 2013-06-24 12:47 -0700
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) pablobarhamalzas@gmail.com - 2013-06-24 12:53 -0700
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Peter Otten <__peter__@web.de> - 2013-06-24 22:05 +0200
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Antoon Pardon <antoon.pardon@rece.vub.ac.be> - 2013-06-24 22:10 +0200
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) John Gordon <gordon@panix.com> - 2013-06-24 20:12 +0000
    Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Joshua Landau <joshua.landau.ws@gmail.com> - 2013-06-24 21:33 +0100
    Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Dave Angel <davea@davea.name> - 2013-06-24 16:43 -0400
      Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) John Gordon <gordon@panix.com> - 2013-06-24 21:41 +0000
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) pablobarhamalzas@gmail.com - 2013-06-24 13:19 -0700
    Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Joshua Landau <joshua.landau.ws@gmail.com> - 2013-06-24 21:33 +0100
  Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) Joshua Landau <joshua.landau.ws@gmail.com> - 2013-06-24 21:19 +0100

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