3 people 6d386684ad gh-47005: fix do_open() to let regular headers override unredirected … (#146506) ...

* gh-47005: fix do_open() to let regular headers override unredirected headers

AbstractHTTPHandler.do_open() was building the request header dict by
starting with unredirected_hdrs and only inserting regular headers that
were not already present, giving unredirected headers priority.  This
contradicts get_header() and header_items(), both of which give regular
headers the higher priority.

Fix by unconditionally updating with req.headers so that a header set
via add_header() always overrides one set via add_unredirected_header().

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Co-authored-by: Senthil Kumaran <[email protected]>

2026-07-08 20:40:18 -07:00

..

__init__.py

…

error.py

…

parse.py

gh-105708: 'V' could be case insensitive for IPvFuture hostnames (#105709)

2026-07-05 10:08:28 -07:00

request.py

gh-47005: fix do_open() to let regular headers override unredirected … (#146506)

2026-07-08 20:40:18 -07:00

response.py

gh-152586: Make tempfile.TemporaryFileWrapper public (#152646)

2026-07-07 21:34:16 +00:00

robotparser.py

gh-60055: Allow passing a Request instance for RobotParser URLs (#103753)

2026-07-05 08:57:09 -07:00