Python random.shuffle test. Python random 模块 中的 shuffle 测试

shuffle.py

import random
import sys
import copy
import pprint

seq = [chr(i) for i in range(ord('A'), ord('A') + 10)]


times = int(sys.argv[1])


result = {}
for s in seq:
    result[s] = {}

for i in range(times):
    random.shuffle(seq)
    
    for c in result:
        for index, s in enumerate(seq):
            if c == s:
                t = 1
            else:
                t = 0
            result[c][index] = result[c].get(index, 0) + t
            


#pprint.pprint(result)

rr = {}
for k, v in result.items():
    v = v.items()
    v.sort(key=lambda a: a[0])
    rr[k] = [a[1] for a in v]

xx = rr.items()
xx.sort(key=lambda a:[0])

print
print

for x1, x2 in xx:
    print x1, '\t',
    for _x in x2:
        print _x, '\t',
    print


print
print