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bpo-40767: Allow pure Wayland to get default XDG web browser (GH-20382) 

Would be nice to backport to python 3.7+. I don't think it's worth the hassle to backport this all the way down to 3.10. But I'll let the maintainers decide.

This is hard to test because the test setup already includes this [environment variable](https://github.com/python/cpython/blob/master/Lib/test/pythoninfo.pyGH-L292)

Let me know if something doesn't match the PR guidelines. This is my first PR in the python source code.
(cherry picked from commit c822efeda9)

Co-authored-by: Jeremy Attali <jeremy.attali@gmail.com>
This commit is contained in:
Miss Islington (bot) 2020-06-03 06:04:29 -07:00 committed by GitHub
parent 20fe5328a3
commit 74a1fceeb6
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2 changed files with 4 additions and 1 deletions
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2
Lib/webbrowser.py
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@ -545,7 +545,7 @@ def register_standard_browsers():
register(browser, None, BackgroundBrowser(browser))
else:
# Prefer X browsers if present
if os.environ.get("DISPLAY"):
if os.environ.get("DISPLAY") or os.environ.get("WAYLAND_DISPLAY"):
try:
cmd = "xdg-settings get default-web-browser".split()
raw_result = subprocess.check_output(cmd, stderr=subprocess.DEVNULL)

3
Misc/NEWS.d/next/Library/2020-05-27-21-27-01.bpo-40767.L5MnVV.rst Normal file
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@ -0,0 +1,3 @@
:mod:`webbrowser` now properly finds the default browser in pure Wayland
systems by checking the WAYLAND_DISPLAY environment variable. Patch
contributed by Jérémy Attali.