Q's on my first python script

[Scott David Daniels]

Steven D'Aprano wrote:
> On Sun, 10 May 2009 12:52:21 +0000, kj wrote:
> ....
>> 5. The variable wd is meant to be "global" to the script.  In other
>>    languages I've programmed in I've seen some typographic convention
>>    used for the name of such variables (e.g. all caps) to signal this
>>    widened scope.  Does python have such a convention?
> 
> As a general rule, it's best to avoid globals variables as much as 
> possible.
> 
> One convention I occasionally use is to prefix global variables with a 
> lowercase g. And then ruthlessly refactor my code until any variable 
> starting with a lowercase g is removed :)

You (the OP) don't seem to know about PEP 8, which advises 4-space
indents, all-caps constants, and many more style specifics.
     http://www.python.org/dev/peps/pep-0008/

--Scott David Daniels
Scott.Daniels at Acm.Org