Confused: Newbie Function Calls
torriem at gmail.com
Wed Aug 11 18:30:59 CEST 2010
On 08/11/2010 10:07 AM, fuglyducky wrote:
> I am a complete newbie to Python (and programming in general) and I
> have no idea what I'm missing. Below is a script that I am trying to
> work with and I cannot get it to work. When I call the final print
> function, nothing prints. However, if I print within the individual
> functions, I get the appropriate printout.
> Am I missing something??? Thanks in advance!!!!
Yes. You are passing sample_string into the functions, but not doing
anything with the return value.
> def gen_header(sample_string):
The sample_string name is rebound to the parameter now, completely
hiding the global variable, if that's really what you wanted.
> def gen_nia(sample_string):
> NIA = """
> sample_string += NIA
> return sample_string
sample_string = gen_header(sample_string)
sample_string = gen_nia(sample_string)
You could drop the arguments to your functions and use the "global"
keyword to get access to sample_string from within the functions, but
normally that's a bad idea.
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