pythonとMongoDBのインタラクション

import pymongo
from pymongo.results import DeleteResult
from bson.objectid import ObjectId

#        
''''
# host=None,  : IP 127.0.0.1
# port=None,  ：    27017
# '''
mongo_client = pymongo.MongoClient(
    host = '127.0.0.1',port=27017
)
# mongo_client = pymongo.MongoClient(
#     'mongodb://127.0.0.1:27017/'
# )
#          
# mongo_client = pymongo.MongoClient(
#     'mongodb://username:password@ip:port'
# )
#     
db = mongo_client['mongotest']
# db = mongo_client.mongotest

#          
col_name = db['test']
#     
# def insert_data():
#     document1 = {
#         'title': 'zhangzengrui',
#         'actors': '  ',
#         'tags': '  1',
#         'info': '     1',
#         'age': 12
#     }
#     document2 = {
#         'title': 'zhangzengrui',
#         'actors': '  ',
#         'tags': '  1',
#         'info': '     1',
#         'age': 15
#     }
#     document3 = {
#         'title': 'zhangzengrui',
#         'actors': '  ',
#         'tags': '  1',
#         'info': '     1',
#         'age': 18
#     }
    # result = col_name.insert(document1)
    # result = col_name.insert([document1,document2,document3])
    # result = col_name.insert_many([document1,document2])
    # print(result)

# def update_data():

    #        multi False      
    # upsert = False，                  ，  True      
    # result = col_name.update(
#     #     {'title': '     3'},
#     #     {'$set': {'info': '1712B'}}
#     # )
#     # print(result)
    #      multi False      
    # result = col_name.update(
    #     {'title': '     3'},
    #     {'name': '  ','gender': ' ','age': 18}
    # )
    # print(result)

    # result = col_name.update_one(
    #     {'name': '  '},
    #     {'$set': {'age':20,'class':'1712B'}}
    # )
    # print(result)
    # col_name.update_many()

    # save                 
    # result = col_name.save(
    #     {'_id': 'ObjectId("5c25e77bfd2c4f1de07b6c81")',
    #         'title': '    ', 'info': '1712B', 'age': 20}
    # )
    #  ID         
    # result = col_name.save(
    #     {'_id': '1234567890',
    #      'title': '    ', 'info': '1712B', 'age': 20}
    # )
    # print(result)

def find_data():
    #     
    # result = col_name.find({})
    #         
    # result = col_name.find({'name': '  '})
    # print([i for i in result])
    #     
    # result = col_name.find_one({'name': '     1'})
    # print(result)
    # limit :     
    # skip ；  
    # sort：     1:   
    result = col_name.find({}).skip(2).limit(3).sort('age',1)
    #       
    result = col_name.find({}).skip(2).limit(3).sort([('age',1),('year',1)])
    for i in result:
        print(i)

#   
# def delete_data():
#     #   multi True      
#     #     
#     result = col_name.remove({'title': '     1'}, multi=False)
#     print(result)
#     #     
#     result = col_name.delete_one({'title': '     2'})
#     print(result)
#     #     
#     result = col_name.delete_many({'title': '     1'})
#     print(result.deleted_count())

if __name__ == '__main__':
    # insert_data()
    # delete_data()
    # update_data()
    find_data()