gistfile1.py

import random

class Pool:

  def __init__(self, names):
    self.names = names

  def pick(self):
    if len(self.names) == 0: 
      return
    i = random.randint(0, len(self.names)-1)
    picked = self.names[i]
    del self.names[i]
    return picked




pool_Z = Pool(["Wang Tao", "Zhang Haibo"])

pool_A = Pool(["Chen Zhitao", "Cheng Yichao", "Peng Yi", "Ding Yadong"])

pool_B = Pool(["Wang Zhaohui", "Zhang Aimin", "Sun Chuanwei", "Liang Weihao"])

pool_C = Pool(["Gaoxao Chuan", "Fang Guoqin", "Qiu Xiaojie", "TBD"])