Function variable wrongly reported unassigned

[adrianmay]

BPO	7747
Nosy	@ezio-melotti
Files	bug.py: Code to demo the bug

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2010-01-21.07:48:00.435>
created_at = <Date 2010-01-21.07:32:37.920>
labels = ['interpreter-core', 'type-bug', 'invalid']
title = 'Function variable wrongly reported unassigned'
updated_at = <Date 2010-01-21.15:17:03.343>
user = 'https://bugs.python.org/adrianmay'

bugs.python.org fields:

activity = <Date 2010-01-21.15:17:03.343>
actor = 'r.david.murray'
assignee = 'none'
closed = True
closed_date = <Date 2010-01-21.07:48:00.435>
closer = 'ezio.melotti'
components = ['Interpreter Core']
creation = <Date 2010-01-21.07:32:37.920>
creator = 'adrianmay'
dependencies = []
files = ['15963']
hgrepos = []
issue_num = 7747
keywords = []
message_count = 3.0
messages = ['98101', '98102', '98104']
nosy_count = 2.0
nosy_names = ['ezio.melotti', 'adrianmay']
pr_nums = []
priority = 'normal'
resolution = 'not a bug'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue7747'
versions = ['Python 2.5']

[adrianmay]

Hi folks,

The attached program says:

$ ./bug.py
a
None
b
Traceback (most recent call last):
  File "./bug.py", line 49, in <module>
    print number(s)
  File "./bug.py", line 34, in foo
    while eat != None:
UnboundLocalError: local variable 'eat' referenced before assignment

but I reckon it is assigned. (I haven't tried it on a newer python because the junk I want to use with python says it only works with 2.5.2.)

Cheers, Adrian.

[ezio-melotti]

This is not a bug, see http://docs.python.org/faq/programming.html#why-am-i-getting-an-unboundlocalerror-when-the-variable-has-a-value

[adrianmay]

OK, Thanks. Sorry for the hassle.

Adrian.