Full Changelog: v0.28.0...v0.29.0

Features

• Add trio.lowlevel.in_trio_run and trio.lowlevel.in_trio_task and document the semantics (and differences) thereof. (#2757)
• If trio.testing.RaisesGroup does not get the expected exceptions it now raises an AssertionError with a helpful message, instead of letting the raised exception/group fall through. The raised exception is available in the __context__ of the AssertionError and can be seen in the traceback. (#3145)

Bugfixes

• Clear Trio's cache of worker threads upon os.fork. (#2764)

Miscellaneous internal changes

• Stop using ctypes to mutate tracebacks for strict_exception_groups=False's exception collapsing. (#405)

• Fixed spelling error in Windows error code enum for ERROR_INVALID_PARAMETER. (#3166)

• Publicly re-export __version__ for type checking purposes. (#3186)

• The typing of trio.abc.HostnameResolver.getaddrinfo has been corrected to match that of the stdlib socket.getaddrinfo, which was updated in mypy 1.15 (via a typeshed update) to include the possibility of tuple[int, bytes] for the sockaddr field of the result. This happens in situations where Python was compiled with --disable-ipv6.

  Additionally, the static typing of trio.to_thread.run_sync, trio.from_thread.run and trio.from_thread.run_sync has been improved and should reflect the underlying function being run. (#3201)