Python MongoDB

Introduction to MongoDB

MongoDB is a popular NoSQL database that stores data in a flexible, JSON-like document format. Python provides an interface to interact with MongoDB using libraries like pymongo, which allows developers to connect to a MongoDB instance, perform CRUD operations, and manipulate the database.

Environment Setup

To use MongoDB with Python, you need to install the pymongo library:

# Install pymongo using pip
!pip install pymongo
            

Connecting to MongoDB

Below is an example of how to connect to a MongoDB database and create a new collection.

from pymongo import MongoClient

# Establishing a connection
client = MongoClient('localhost', 27017)
db = client['school_db']

# Creating a collection
students_collection = db['students']
print("Connected to MongoDB and collection created successfully!")
            

# Inserting a document into the 'students' collection
student = {
    'name': 'John Doe',
    'age': 21,
    'subjects': ['Math', 'Science']
}
students_collection.insert_one(student)
print("Document inserted successfully!")
            

# Fetching all documents from the collection
for student in students_collection.find():
    print(student)
            

Explanation

• MongoClient: Used to connect to the MongoDB server.
• Database and Collection: Similar to databases and tables in SQL.
• Document: The basic unit of data in MongoDB, equivalent to a row in SQL.

Benefits of Using MongoDB with Python