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Python Requests Module Session
The requests module in Python is a powerful and easy-to-use library for making HTTP requests. One of the most useful features of this module is sessions.
What is a session?
A session is a way to persist information across multiple requests. It allows you to reuse the same connection to a server for multiple requests, which can improve performance and reduce the amount of code you need to write.
How to use sessions in Python requests module?
To use sessions in Python requests module, you first need to create a session object:
import requests
session = requests.Session()
Once you have created a session object, you can use it to make requests:
response = session.get('https://www.example.com')
You can also set default headers or cookies for all requests made with the session:
session.headers.update({'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36'})
session.cookies.update({'name': 'value'})
If you need to make multiple requests to the same endpoint, you can reuse the same session object:
response1 = session.get('https://www.example.com/page1')
response2 = session.get('https://www.example.com/page2')
Why use sessions?
Sessions can be useful in a variety of scenarios. For example, if you need to make multiple requests to the same endpoint, using a session can improve performance by reusing the same connection to the server. Additionally, sessions allow you to persist information such as cookies or authentication tokens across multiple requests.
Conclusion
The requests module in Python is a powerful tool for making HTTP requests. Sessions are a useful feature that can help improve performance and reduce the amount of code you need to write. By creating a session object, you can reuse the same connection to a server across multiple requests, set default headers or cookies, and persist information across different requests.