saving data to mongodb using pymongo

Question

I am having an issue trying to save data to MongoDB.

I first run this python program:

import pymongo
import sys

def main():
    connection = pymongo.Connection("mongodb://localhost", safe = True) 

    db = connection.m101
    people = db.people

    person = {'name':'Barack Obama', 'role':'president'}
    people.insert(person)

but then, when i try to retrieve the data from the mongoshell:

> use m101

switched to db m101

 > db.people.find()

returns nothing! I'm not sure what is going on. Thanks for your help.

Ben Mosher · Accepted Answer · 2014-06-13 20:57:21Z

4

Your code is not working because main() is never called.

Adding

if __name__ == '__main__':
    main()

will execute your defined main function when executed.

edited Jun 13, 2014 at 20:57

Ben Mosher

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answered Nov 4, 2012 at 16:39

user2665694

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1 Comment

Ben Mosher Over a year ago

To clarify: Python will execute the outermost scope (no indent level) when executing the file directly; as written in the question, the script just defines main without calling it. The __name__ == '__main__' predicate ensures that main is only executed if the script is executed directly (i.e. python my_main.py from a console); main will not be executed if this script is imported. Whether this is the desired behavior depends on your use case.

Calvin Cheng · Accepted Answer · 2012-11-04 16:46:11Z

1

You are not executing your main() function so nothing was ever executed.

answered Nov 4, 2012 at 16:46

Calvin Cheng

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Comments

Shashwat Gupta · Accepted Answer · 2018-10-06 14:50:00Z

Simple solution

from flask import Flask
from flask_pymongo import PyMongo
import json
import datetime
import urllib, json
from flask import jsonify
from bson.json_util import dumps

@app.route("/saveBookings", methods=['POST'])
def saveBookings():
    posts = mongo.db.bookings

    post = {"meetingRoom_name": "kriti_jio",
          "personName": "honey",
         "meetingRoom_location": "kannauj",
         "book_start_time": datetime.datetime.utcnow()}
    post_id = posts.insert_one(post).inserted_id
    return  jsonify(status="done",id=dumps(post_id),action="Data saved Succesfully",error="false");

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