psf/requests v2.27.0 on GitHub

2.27.0 (2022-01-03)

Improvements

Officially added support for Python 3.10. (#5928)
Added a requests.exceptions.JSONDecodeError to unify JSON exceptions between
Python 2 and 3. This gets raised in the response.json() method, and is
backwards compatible as it inherits from previously thrown exceptions.
Can be caught from requests.exceptions.RequestException as well. (#5856)
Improved error text for misnamed InvalidSchema and MissingSchema
exceptions. This is a temporary fix until exceptions can be renamed
(Schema->Scheme). (#6017)
Improved proxy parsing for proxy URLs missing a scheme. This will address
recent changes to urlparse in Python 3.9+. (#5917)

Bugfixes

Fixed defect in extract_zipped_paths which could result in an infinite loop
for some paths. (#5851)
Fixed handling for AttributeError when calculating length of files obtained
by Tarfile.extractfile(). (#5239)
Fixed urllib3 exception leak, wrapping urllib3.exceptions.InvalidHeader with
requests.exceptions.InvalidHeader. (#5914)
Fixed bug where two Host headers were sent for chunked requests. (#5391)
Fixed regression in Requests 2.26.0 where Proxy-Authorization was
incorrectly stripped from all requests sent with Session.send. (#5924)
Fixed performance regression in 2.26.0 for hosts with a large number of
proxies available in the environment. (#5924)
Fixed idna exception leak, wrapping UnicodeError with
requests.exceptions.InvalidURL for URLs with a leading dot (.) in the
domain. (#5414)

Deprecations

Requests support for Python 2.7 and 3.6 will be ending in 2022. While we
don't have exact dates, Requests 2.27.x is likely to be the last release
series providing support.

Full Changelog: https://github.com/psf/requests/blob/v2.27.0/HISTORY.md#2270-2022-01-03