python基数排序算法

from random import randint 
               
def main():                
    A = [randint(1, 99999999) for _ in xrange(9999)] 
    for k in xrange(8):    
        S = [ [] for _ in xrange(10)] 
        for j in A:        
            S[j / (10 ** k) % 10].append(j) 
        A = [a for b in S for a in b] 
    for i in A:            
        print i                                         
   
main()