The Ultimate Python and MongoDB Guide For Beginners In 2020.

The Ultimate Python and MongoDB Guide For Beginners In 2020.

Python can be used in database applications. One of the most popular NoSQL databases is MongoDB. MongoDB stores data in JSON-like documents, which makes the database very flexible and scalable. In this article, I hope to teach you the fundamentals of MongoDB in Python.

Python can be used in database applications. One of the most popular NoSQL databases is MongoDB. MongoDB stores data in JSON-like documents, which makes the database very flexible and scalable. In this article, I hope to teach you the fundamentals of MongoDB in Python.

If you are new to Python, check out my Python Guide as well.

Getting Started

Python needs a MongoDB driver to access the MongoDB database. We recommend that you use PIP to install “PyMongo”. PIP is most likely already installed in your Python environment.

C:\Users\Your Name\AppData\Local\Programs\Python\Python36-32\Scripts>python -m pip install pymongo

To test if your PyMongo has been installed successfully run the following line of code:

import pymongo

If the above code was executed with no errors, “pymongo” is installed and ready.

Creating a Database

To create a database in MongoDB, start by creating a MongoClient object, then specify a connection URL with the correct IP address and the name of the database you want to create.

import pymongo

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]

Check if a Database Exists

dblist = myclient.list_database_names()
if "mydatabase" in dblist:
  print("The database exists.")

Creating a Collection

To create a collection in MongoDB, use the database object, and specify the name of the collection you want to create.

import pymongo

myclient = pymongo.MongoClient("mongodb://localhost:27017/")
mydb = myclient["mydatabase"]
mycol = mydb["users"]

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