self.orm.py

from pymongo import *
import pprint
class Users:
    def __init__(self):
        self.client=MongoClient('localhost',27017)
        self.db=self.client.telegram
    def all(self,cn,arg1=None):

            main_data = self.db["{}".format(cn)].find()
            if arg1 is None:
                return pprint.pprint(main_data)
            else:
                for i in main_data:
                    try:
                        pprint.pprint(i[arg1])

                    except Exception as e:
                        pass


cli_test = Users()
cli_test.all('telegramcollection','name')