num_list=[4,5,5,4]
num_list = sorted(num_list)
print num_list
if len(num_list) % 2 != 0:
print "odd list"
middle = (len(num_list)/2)
median = num_list[middle]
else:
print "even list"
print len(num_list)
median = (num_list[ (len(num_list) / 2) ] + num_list[ (len(num_list) / 2)-1 ]) / 2.0
print median