# coding: utf-8 from pymongo import MongoClient # MongoDB的连接信息 MONGO_URI = 'mongodb://127.0.0.1:27017' MONGO_DBNAME = 'starter_db' # 创建MongoDB的连接 client = MongoClient(MONGO_URI) # 选择或创建数据库 db = client[MONGO_DBNAME] # 选择或创建集合(类似关系数据库中的表) users_collection = db['users'] # 创建唯一索引 users_collection.create_index('username', unique=True) users_collection.create_index('email', unique=True)