[issue12023] non causal behavior

[Ezio Melotti]

Ezio Melotti <ezio.melotti at gmail.com> added the comment:

See also http://docs.python.org/faq/programming.html#why-am-i-getting-an-unboundlocalerror-when-the-variable-has-a-value

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12023>
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