urllib3 is a powerful, user-friendly HTTP client for Python. Much of the Python ecosystem already uses urllib3 and you should too. urllib3 brings many critical features that are missing from the Python standard libraries:

• Thread safety.
• Connection pooling.
• Client-side SSL/TLS verification.
• File uploads with multipart encoding.
• Helpers for retrying requests and dealing with HTTP redirects.
• Support for gzip, deflate, brotli, and zstd encoding.
• Proxy support for HTTP and SOCKS.
• 100% test coverage.

urllib3 is powerful and easy to use:

>>> import urllib3
>>> http = urllib3.PoolManager()
>>> resp = http.request("GET", "http://httpbin.org/robots.txt")
>>> resp.status
200
>>> resp.data
b"User-agent: *\nDisallow: /deny\n"

urllib3 can be installed with pip:

$ python -m pip install urllib3

Alternatively, you can grab the latest source code from GitHub:

$ git clone https://github.com/urllib3/urllib3.git
$ cd urllib3
$ pip install .

urllib3 has usage and reference documentation at urllib3.readthedocs.io.

urllib3 has a community Discord channel for asking questions and collaborating with other contributors. Drop by and say hello 👋

urllib3 happily accepts contributions. Please see our contributing documentation for some tips on getting started.

To report a security vulnerability, please use the Tidelift security contact. Tidelift will coordinate the fix and disclosure with maintainers.

• @sethmlarson (Seth M. Larson)
• @pquentin (Quentin Pradet)
• @theacodes (Thea Flowers)
• @haikuginger (Jess Shapiro)
• @lukasa (Cory Benfield)
• @sigmavirus24 (Ian Stapleton Cordasco)
• @shazow (Andrey Petrov)

👋

If your company benefits from this library, please consider sponsoring its development.

Professional support for urllib3 is available as part of the Tidelift Subscription. Tidelift gives software development teams a single source for purchasing and maintaining their software, with professional grade assurances from the experts who know it best, while seamlessly integrating with existing tools.