Agfdhyk

I´m pretty new learning Python and all the containing stuff.

I tried to make my first little steps, installing a MongoDB (working) and connecting to it.

from pymongo import MongoClient

from pprint import pprint

from random import randint







client = MongoClient('localhost', 27017)

db = client.test

collection = db.users



user = {"id": 1, "username": "Test"}



user_id = collection.insert_one(user).inserted_id

print(user_id)

This is the complete code.

pymongo Version: 3.7.2 checked with:

pip freeze | grep pymongo

Output: pymongo==3.7.2

Python Version: 3.7.1

If I try to execute my tiny script, the following error occurs:

'Collection' object is not callable. 

If you meant to call the 'insert_one' method on a 'Collection'

object it is 

failing because no such method exists.

Where is my Fault?

A little research showed that in pymongo v2 the ".insert_one" is ".insert", but the 3.7.2 version is installed so I should (and must) use the ".insert.one", not the ".insert"

insert_one according with pymongo documentation exists, for server version >= 3.2...

the use is:

user = {'x': 1}

result = db.test.insert_one(user)

result.inserted_id

more complete explanation about insert_one:

>>> db.test.count_documents({'x': 1})

0

>>> result = db.test.insert_one({'x': 1})

>>> result.inserted_id

ObjectId('54f112defba522406c9cc208')

>>> db.test.find_one({'x': 1})

{u'x': 1, u'_id': ObjectId('54f112defba522406c9cc208')}

the following below, I executed and works fine:

# importing client mongo to make the connection

from pymongo import MongoClient



print("--- Exemplo pymongo Connection ---")



# Connection to MongoDB

client = MongoClient('localhost', 27017)



# Selection the Database

db = client.python



# Select the collection

collection = db.users



# Set up a document

user = {"id": 1, "username": "Test"}



# insert one document into selected document

result = collection.insert_one(user)



# Selection just one document from collection

#result = collection.find_one()



# removing the document inserted

collection.delete_one(user)



# print the inserted_id

print("inserted_id: ", result.inserted_id)

Pymongo Documentation