Python | 如何创建动态和可扩展的词典

Python | 如何创建动态和可扩展的词典

userdata = { "data":[]}def fil_userdata():  for i in xrange(0,5):    user = {}    user["name"]=...    user["age"]=...    user["country"]=...    add_user(user)def add_user(user):  userdata["data"].append(user)

或更短：

def gen_user():  return {"name":"foo", "age":22}userdata = {"data": [gen_user() for i in xrange(0,5)]}# or fill separated from declaration so you can fill lateruserdata ={"data":None} # None: not initializeduserdata["data"]=[gen_user() for i in xrange(0,5)]