- Update from version 0.22.0 to 0.23.1
- Update of rootfile
- Changelog
0.23.0
Headline features
Add type hints. (#543)
Features
When exiting a nursery block, the parent task always waits for child tasks
to exit. This wait cannot be cancelled. However, previously, if you tried
to cancel it, it would inject a Cancelled exception, even though it wasn’t
cancelled. Most users probably never noticed either way, but injecting a
Cancelled here is not really useful, and in some rare cases caused
confusion or problems, so Trio no longer does that. (#1457)
If called from a thread spawned by trio.to_thread.run_sync,
trio.from_thread.run and trio.from_thread.run_sync now reuse the task and
cancellation status of the host task; this means that context variables and
cancel scopes naturally propagate ‘through’ threads spawned by Trio. You
can also use trio.from_thread.check_cancelled to efficiently check for
cancellation without reentering the Trio thread. (#2392)
trio.lowlevel.start_guest_run() now does a bit more setup of the guest run
before it returns to its caller, so that the caller can immediately make
calls to trio.current_time(), trio.lowlevel.spawn_system_task(),
trio.lowlevel.current_trio_token(), etc. (#2696)
Bugfixes
When a starting function raises before calling trio.TaskStatus.started(),
trio.Nursery.start() will no longer wrap the exception in an undocumented
ExceptionGroup. Previously, trio.Nursery.start() would incorrectly raise an
ExceptionGroup containing it when using trio.run(...,
strict_exception_groups=True). (#2611)
Deprecations and removals
To better reflect the underlying thread handling semantics, the keyword
argument for trio.to_thread.run_sync that was previously called cancellable
is now named abandon_on_cancel. It still does the same thing – allow the
thread to be abandoned if the call to trio.to_thread.run_sync is
cancelled – but since we now have other ways to propagate a cancellation
without abandoning the thread, “cancellable” has become somewhat of a
misnomer. The old cancellable name is now deprecated. (#2841)
Deprecated support for math.inf for the backlog argument in
open_tcp_listeners, making its docstring correct in the fact that only
TypeError is raised if invalid arguments are passed. (#2842)
Removals without deprecations
Drop support for Python3.7 and PyPy3.7/3.8. (#2668)
Removed special MultiError traceback handling for IPython. As of version
8.15 ExceptionGroup is handled natively. (#2702)
Miscellaneous internal changes
Trio now indicates its presence to sniffio using the sniffio.thread_local
interface that is preferred since sniffio v1.3.0. This should be less
likely than the previous approach to cause sniffio.current_async_library()
to return incorrect results due to unintended inheritance of contextvars.
(#2700)
On windows, if SIO_BASE_HANDLE failed and SIO_BSP_HANDLE_POLL didn’t return
a different socket, runtime error will now raise from the OSError that
indicated the issue so that in the event it does happen it might help with
debugging. (#2807)
0.22.2
Bugfixes
Fix PermissionError when importing trio due to trying to access pthread.
(#2688)
0.22.1
Breaking changes
Timeout functions now raise ValueError if passed math.nan. This includes
trio.sleep, trio.sleep_until, trio.move_on_at, trio.move_on_after,
trio.fail_at and trio.fail_after. (#2493)
Features
Added support for naming threads created with trio.to_thread.run_sync,
requires pthreads so is only available on POSIX platforms with glibc
installed. (#1148)
trio.socket.socket now prints the address it tried to connect to upon
failure. (#1810)
Bugfixes
Fixed a crash that can occur when running Trio within an embedded Python
interpreter, by handling the TypeError that is raised when trying to
(re-)install a C signal handler. (#2333)
Fix sniffio.current_async_library() when Trio tasks are spawned from a
non-Trio context (such as when using trio-asyncio). Previously, a regular
Trio task would inherit the non-Trio library name, and spawning a system
task would cause the non-Trio caller to start thinking it was Trio. (#2462)
Issued a new release as in the git tag for 0.22.0, trio.__version__ is
incorrectly set to 0.21.0+dev. (#2485)
Improved documentation
Documented that Nursery.start_soon does not guarantee task ordering. (#970)
Tested-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
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