python insertion sort

#!/urs/bin/env python
# -*- encoding:utf-8 -*-

def insertsort(seq):
for i in range(1, len(seq)):
j = i - 1
temp = seq[i]
while seq[j]>temp and j >= 0:
seq[j+1] = seq[j]
j = j - 1
seq[j+1] = temp

if __name__ == '__main__':
seq = [5, 2, 1, 3, 4, 8, 1]
insertsort(seq)
print seq