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| From | John Gordon <gordon@panix.com> |
| Newsgroups | comp.lang.python |
| Subject | Re: What's wrong with this code? (UnboundLocalError: local variable referenced before assignment) |
| Date | Mon, 24 Jun 2013 21:41:54 +0000 (UTC) |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Lines | 22 |
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| References | <b3d3518a-f24a-4c32-a41a-b99145753528@googlegroups.com> <kqa981$9uu$1@reader2.panix.com> <mailman.3767.1372106609.3114.python-list@python.org> |
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In <mailman.3767.1372106609.3114.python-list@python.org> Dave Angel <davea@davea.name> writes:
> > The problem is that change() isn't being executed here; instead it's being
> > executed from within root.mainloop(), whenever the user presses button-1.
> >
> > And within root.mainloop(), there is no variable called isWhite.
> >
> Actually that's irrelevant. Whether or not there's one global with the
> same name, or twenty-three object attributes with the same name, the
> fact that there's a binding of the local makes that name a local. The
> only way to avoid that is not to bind, or to use global or nonlocal
> declarations.
Quite right. I should have verified my answer before posting. Thanks
for setting me straight. :-)
--
John Gordon A is for Amy, who fell down the stairs
gordon@panix.com B is for Basil, assaulted by bears
-- Edward Gorey, "The Gashlycrumb Tinies"
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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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