FIR filtering

[LabWINC]

I'm interested in finding coefficient and implementig the filter as
well.
John's post is what i need.

John Hunter wrote:
> help scipy.filter (see FIR filter design below)

How can i get the help like yours?

If i type help scipy.filter it give me an error

help scipy.filter
  File "<input>", line 1
    help scipy.filter
             ^
SyntaxError: invalid syntax



I'm sorry but i'm new of python,

Vincent