lock: properly convert error to bytes
Flagged by pytype when a later changeset is applied moving typing comment to annotation.
We fix this ahead of the annotation change to make sure pytype remains happy
after the change.
We have to do fairly crazy dance for pytype to be happy. This probably comes
from the fact IOError.filename probably claims to be `str` while it is actually
`bytes` if the filename raising that `IOError` is bytes.
At the same time, `IOError.strerror` is consistently `str` and should be passed
as `str` everywhere.
Mercurial
=========
Mercurial is a fast, easy to use, distributed revision control tool
for software developers.
Basic install::
$ make # see install targets
$ make install # do a system-wide install
$ hg debuginstall # sanity-check setup
$ hg # see help
Running without installing::
$ make local # build for inplace usage
$ ./hg --version # should show the latest version
See https://mercurial-scm.org/ for detailed installation
instructions, platform-specific notes, and Mercurial user information.
Notes for packagers
===================
Mercurial ships a copy of the python-zstandard sources. This is used to
provide support for zstd compression and decompression functionality. The
module is not intended to be replaced by the plain python-zstandard nor
is it intended to use a system zstd library. Patches can result in hard
to diagnose errors and are explicitly discouraged as unsupported
configuration.