Re: Curious UnboundLocalError Behavior

[Matthew Franz]

I had tried the global prefix in the real code (vs. the contrived
example in the post), but in the incorrect code block, which made me
think something else was up. Yes, these were supposed to be constants
that under rare circumstances were changed ;)  In the end, I  scrapped
the rebind approach, because that wasn't the behavior I wanted
either.Thanks for the help.

- mdf

On 1 Mar 2007 00:20:05 -0800, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:
> On 28 fév, 18:15, "Matthew Franz" <[EMAIL PROTECTED]> wrote:
> > I'm probably fundamentally misunderstanding the way the interpreter
> > works with regard to scope, but is this the intended behavior...
> >
> (snip traceback)
>
> > import os,sys
> >
> > SOMEGLOBAL=1
> >
> > def foo():
> > dome=False
> > if dome:
> > SOMEGLOBAL = 0
>
>
> This makes SOMEGLOBAL local !-)
>
> Look for the 'global' statement. Or better, try to avoid rebinding
> globals from within a function.
>
> As as side note: by convention, ALL_UPPER names denote constants.
>
> --
> http://mail.python.org/mailman/listinfo/python-list
>


-- 
Matthew Franz
http://www.threatmind.net/
-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Curious UnboundLocalError Behavior

[[EMAIL PROTECTED]]

On 28 fév, 18:15, "Matthew Franz" <[EMAIL PROTECTED]> wrote:
> I'm probably fundamentally misunderstanding the way the interpreter
> works with regard to scope, but is this the intended behavior...
>
(snip traceback)

> import os,sys
>
> SOMEGLOBAL=1
>
> def foo():
> dome=False
> if dome:
> SOMEGLOBAL = 0


This makes SOMEGLOBAL local !-)

Look for the 'global' statement. Or better, try to avoid rebinding
globals from within a function.

As as side note: by convention, ALL_UPPER names denote constants.

-- 
http://mail.python.org/mailman/listinfo/python-list

Re: Curious UnboundLocalError Behavior

[Daniel Nogradi]

> I'm probably fundamentally misunderstanding the way the interpreter
> works with regard to scope, but is this the intended behavior...
>

[]

> SOMEGLOBAL:
> Traceback (most recent call last):
>   File "unboundlocal.py", line 15, in ?
> foo()
>   File "unboundlocal.py", line 11, in foo
> print "SOMEGLOBAL:",SOMEGLOBAL
> UnboundLocalError: local variable 'SOMEGLOBAL' referenced before assignment

[..]

> import os,sys
>
> SOMEGLOBAL=1
>
> def foo():
> dome=False
> if dome:
> SOMEGLOBAL = 0
>
> print globals()
> print "SOMEGLOBAL:",SOMEGLOBAL
>
> print os.uname()
> print sys.version
> foo()
>


Try:

import os,sys

SOMEGLOBAL=1

def foo():
global SOMEGLOBAL
dome=False
if dome:
SOMEGLOBAL = 0

print globals()
print "SOMEGLOBAL:",SOMEGLOBAL

print os.uname()
print sys.version
foo()

HTH,
Daniel
-- 
http://mail.python.org/mailman/listinfo/python-list