webbrowser: fix compatibility with trio 0.25 #5895
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Add the `exceptiongroup` dependency directly to Streamlink, so we can write `ExceptionGroup` handling code on all supported versions of Python without having to rely on `trio`'s conditional dependency.
- Set min. version requirement of `trio` to `0.25`, so we don't have to set `strict_exception_groups` to `True` on older versions (probably not even possible via `pytest-trio`) - Fix compatibility with `trio>=0.25`: Since `strict_exception_groups` now defaults to `True`, trio nurseries now always raise an `ExceptionGroup` in all cases, so update tests and handle exception groups instead. Don't unwrap exception groups for now, even if only a single exception is included. Explicitly handle `KeyboardInterrupt`/`SystemExit` and re-raise by using the `exceptiongroup.catch` utility (<py311 compat)
This was referenced Mar 19, 2024
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See #5893
Breaking changes in
trio's0.25release (apparently the last breaking change before their first stable release):https://github.com/python-trio/trio/releases/tag/v0.25.0
Add the
exceptiongroupdependency directly to Streamlink, so we can writeExceptionGrouphandling code on all supported versions of Python without having to rely ontrio's conditional dependency.trioto0.25,so we don't have to set
strict_exception_groupstoTrueon older versions (probably not even possible viapytest-trio)trio>=0.25:Since
strict_exception_groupsnow defaults toTrue, trio nurseries now always raise anExceptionGroupin all cases, so update tests and handle exception groups instead. Don't unwrap exception groups for now, even if only a single exception is included.Explicitly handle
KeyboardInterrupt/SystemExitand re-raise by using theexceptiongroup.catchutility (<py311 compat)It's a bit annoying having to include the
exceptiongroupdependency, but there's no other way around this. Python 3.11'sexcept*syntax can't be used and making Python 3.11 the min requirement of the whole project because of this doesn't make sense. Python 3.10 reaches its EOL on 2026-10-31, so the added dependency will have to stay until then.It'll probably make sense preparing a patch release because of these changes within the next couple of days, so we don't cause any unnecessary blockers on Linux distros where only the latest version gets packaged (e.g. Arch) - in case they will re-build packages depending on trio.