Snippets: Creating a matrix in python

There's two easy ways to do this:

Looping:

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1. def matrix(rownumber,columnumber):  
2.    matrix = []  
3.    for i in range(rownumber):  
4.        a = [0]*columnumber  
5.        matrix.append(a)  
6.    return matrix  

def matrix(rownumber,columnumber):
   matrix = []
   for i in range(rownumber):
       a = [0]*columnumber
       matrix.append(a)
   return matrix

List comprehensions:

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1. def matrix(rownumber, columnumber):  
2.     return [[0]*columnumber for x in range(rownumber)]  

def matrix(rownumber, columnumber):
    return [[0]*columnumber for x in range(rownumber)]