import string

import random

CODE_COUNT = 200

CODE_LEN =10

def strall():

  return (string.ascii_letters+string.digits)

string.ascii_letters是python3的写法，python2是string.letters

def codeGen():

  CodeSet = set()

  while len(CodeSet) < CODE_COUNT:

    code = ''.join([random.choice(strall()) for i in range(CODE_LEN)])

    CodeSet.add(code)

  return CodeSet

import string

import random



#假设需要生成200个，长度为10的优惠码




CODE_COUNT = 200

CODE_LEN =10







def strall():

  return (string.ascii_letters+string.digits)




def codeGen():

  CodeSet = set()

  while len(CodeSet) < CODE_COUNT:

    code = ''.join([random.choice(strall()) for i in range(CODE_LEN)])

    CodeSet.add(code)

  return CodeSet




if __name__ == '__main__':

  

  print (codeGen())