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From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: Verifying Variable value
Date: Wed, 14 Aug 2013 15:08:54 -0400
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On 8/14/2013 12:36 PM, Prasad, Ramit wrote:
> chandan kumar wrote:

>> Is there a way to validate variable values while debugging any python code.
> In addition to pdb, I would imagine most Python IDEs would support debugging in this manner.

Idle also has a debugger. It uses the same bdb base debug module as pdb. 
One turns it on (or off) in the Shell window. Then run code from an 
editor window. For your example (which lacked the ':')
---
def method():
   a = 20
   b =30
   c =  a + b
   return

method()
---
I added the return so the debugger would pause there after calculating 
c. The method has to be called in order to step into the body during 
execution. One can also set breakpoints in the editor, though I have 
never tried that.

-- 
Terry Jan Reedy