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From: Dave Angel <davea@davea.name>
Subject: Re:gdb python how to output integer for examine memory
Date: Mon, 24 Mar 2014 08:22:59 -0400 (EDT)
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Xref: csiph.com comp.lang.python:68873

 Wesley <nispray@gmail.com> Wrote in message:
> Hi all,
>   I am trying to use gdb debug python script.
> I am using gdb7.7 and python2.7.6, here is my simple test script: 
> import time
> 
> def next(i):
>     time.sleep(10)
>     i = 1 - i
> 
> i = 1
> while True:
>     next(i)
> When this script running, gdb attach to it, and here is snippet:
> 

I cannot help with gdb, but I can point out that you have two
 separate variables here. Decrement ing the local has no effect on
 the global value.

The preferred way is to return any values from the function that
 you want to use after it exits. 
def next(i):
     time.sleep(10)
     i = 1 - i
     return i

i = 1
while True:
    i =next(i)

Another possibility,  generally a bad idea,  is declaring i global
 in the function. 

-- 
DaveA