#!/usr/bin/python
count = range(4)
twoDimensionList = [[]] * len(count)
for i in range(len(count)):
	twoDimensionList[i].append(count[i])
print twoDimensionList

#I might be missing something, but I am expecting the following code to print out a list of lists with each internal list holding one number[0-4], but instead the internal lists are a copy of list count.  

#Should print: 
#[[0], [1], [2], [3]]

#but erroneously prints:
#[[0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3], [0, 1, 2, 3]]