[PR #7716/5a499d04 backport][3.9] Fix unhandled exception for invalid Unicode in Python HTTP parser #7720
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This is a backport of PR #7716 as merged into master (5a499d0).
What do these changes do?
Fixes an unhandled exception in the Python HTTP parser that causes servers to 500 when they should 400 upon receiving a header with an invalid Unicode sequence.
Are there changes in behavior for the user?
Nope.
Related issue number
Fixes #7715