find the index of minimum element in a list python

1# function to find minimum and maximum position in list
2def minimum(a, n):
3  
4    # inbuilt function to find the position of minimum 
5    minpos = a.index(min(a))
6      
7    # inbuilt function to find the position of maximum 
8    maxpos = a.index(max(a)) 
9      
10    # printing the position 
11    print "The maximum is at position", maxpos + 1  
12    print "The minimum is at position", minpos + 1