gh-76646: Fix proxy_bypass_registry trailing semicolon on Windows

[PrinceNaroliya]

Problem:

• When ProxyOverride registry value ends with a semicolon, empty string entry caused all hosts to bypass proxy incorrectly.

Fix:

• In _proxy_bypass_winreg_override, strip empty entries from ProxyOverride.
• Now proxy_bypass behaves correctly on Windows when registry value ends with ';'.

Test:

• Added unit test ProxyBypassRegistryTests in test_urllib_proxy_bypass.py
• Test verifies:
  • Host that should NOT bypass proxy (notmatching.com) returns False
  • Hosts that SHOULD bypass proxy (localhost and sub.example.com) return True

All tests pass locally: python -m test test_urllib -v ✅

• Issue: [urllib] proxy_bypass_registry - extra error handling required for ProxyOverride, Windows under proxy environment #76646

[PrinceNaroliya]

Hi, I’ve implemented the fix for #76646 (_proxy_bypass_winreg_override trailing semicolon issue) and added the corresponding unit test in test_urllib.py.

• Local tests pass successfully ✅

• NEWS entry is created at: Misc/NEWS.d/next/32465.proxy_bypass_trailing_semicolon.rst

• Folder name and path have been double-checked, and line endings are LF

However, the CI keeps failing with bedevere/news — News entry not in an appropriate directory even though the file is correctly placed.

Could you please guide me on what I might be missing or if there’s a way to get the NEWS check to pass? Any help would be greatly appreciated!

[AA-Turner]

Review PEP 8, the style guide for the standard language. Notably, we use underscores to separate words in variable names, which are themselves lowercase.

You may also find the Python Developer's Guide instructive.

A

[AA-Turner]

Why?

[AA-Turner]

This code is clearer. If the fix is to skip empty entries, just add ``if not test: continue`.

[bedevere-app]

A Python core developer has requested some changes be made to your pull request before we can consider merging it. If you could please address their requests along with any other requests in other reviews from core developers that would be appreciated.

Once you have made the requested changes, please leave a comment on this pull request containing the phrase I have made the requested changes; please review again. I will then notify any core developers who have left a review that you're ready for them to take another look at this pull request.

[AA-Turner]

However, the CI keeps failing with bedevere/news — News entry not in an appropriate directory even though the file is correctly placed.

You must use the blurb tool. I advise a close reading of the devguide.

[PrinceNaroliya]

Thank you for the review and helpful feedback.
I have made the requested changes (PEP 8 naming and NEWS entry via blurb).
Please review again when convenient.