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python requests library error handling

Narkw Brahma

Narkw Brahma

• 1 min read

Python Requests Library Error Handling

Python Requests is a widely used HTTP client library for Python. It simplifies sending HTTP requests and handling responses in Python. However, while making requests, various errors can occur, such as connection errors, timeout errors, and invalid URL errors. Therefore, proper error handling when using the Requests library is essential to ensure the reliability of the application.

Handling Connection Errors

Connection errors occur when the client is unable to establish a connection with the server. This can be due to network issues, server downtime, or incorrect server address. To handle connection errors in Requests, you can use the requests.exceptions.ConnectionError exception.


import requests

try:
    response = requests.get('https://www.example.com')
except requests.exceptions.ConnectionError as e:
    print("Connection error:", e)

Handling Timeout Errors

Timeout errors occur when the server takes too long to respond to a request. To handle timeout errors in Requests, you can set a timeout value for your request using the timeout parameter. The timeout value is in seconds.


import requests

try:
    response = requests.get('https://www.example.com', timeout=5)
except requests.exceptions.Timeout as e:
    print("Timeout error:", e)

Handling Invalid URL Errors

Invalid URL errors occur when the URL provided to Requests is not valid. This can be due to syntax errors or incorrect protocol. To handle invalid URL errors in Requests, you can use the requests.exceptions.InvalidURL exception.


import requests

try:
    response = requests.get('httxs://www.example.com')
except requests.exceptions.InvalidURL as e:
    print("Invalid URL error:", e)

Handling Other Errors

Requests can also raise various other exceptions, such as requests.exceptions.HTTPError, requests.exceptions.TooManyRedirects, and requests.exceptions.RequestException. To handle all possible exceptions, you can use the base requests.exceptions.RequestException exception.


import requests

try:
    response = requests.get('https://www.example.com')
    response.raise_for_status()
except requests.exceptions.RequestException as e:
    print("Error occurred:", e)
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