String/Number Conversion

[Andreas Hofmann]

Hello Folks!

I've got a little problem here, which which really creeps me out at the 
moment.
I've got some strings, which only contain numbers plus eventually one 
character as si-postfix (k for kilo, m for mega, g for giga). I'm trying 
to convert those strings to integers, with this function:


def eliminate_postfix(value):
         if type(value) is str:
                 value.upper()
                 if value.endswith('K'):
                         mult = 1000
                 elif value.endswith('M'):
                         mult = 1000000
                 elif value.endswith('G'):
                         mult = 1000000000
                 else:
                         mult = 1

                 if mult is 1:
                         value = string.atoi(value)
                 else:
                         value = string.atoi(value[:-1]) * mult
         return value



The problem is as follows: Everytime a string with a postfix should get 
converted, mult does not get set properly. It is always 1. Does anyone 
have an idea how to fix this? I just don't see it, maybe because I'm 
pretty new to python or because I'm just blind I would be really greatful.

Kind regards,
Andy