import pymongo import getpass myclient = pymongo.MongoClient("mongodb://admin:pass@localhost:27017/") username = input("Username: ") password = getpass.getpass("Password: ") mydb = myclient["groclist_db"] mycol = mydb["groclist_users"] mydict = {"username": username, "password": password} if mycol.find_one({"username": username}): print("Username already exists\n") exit() else: x = mycol.insert_one(mydict) print("User created")