Jason R. Coombs

I stumbled onto another one: ``` /Users/jaraco/code/jaraco/jaraco.xonsh/.tox/py/lib/python3.12/site-packages/xonsh/history/json.py:426: EncodingWarning: 'encoding' argument not specified with open(self.filename, "w", newline="\n") as f: ```

And this one: ```xsh .tox/py/lib/python3.12/site-packages/xonsh/foreign_shells.py:243 /Users/jaraco/code/jaraco/jaraco.xonsh/.tox/py/lib/python3.12/site-packages/xonsh/foreign_shells.py:243: EncodingWarning: 'encoding' argument not specified. s = subprocess.check_output( ```

The practical case that led me to this issue was that I was attempting to pass through `$args` to an alias: ``` aliases['user-hg'] = 'env HGRCPATH=/etc/mercurial/hgrc.d hg --config paths.default=http://somehost.corp @($args)'...

> @jaraco we do seem to be having some regression that may or may not be related to Matplotlib moving to new-style namespace packages. Is there a better fix for...

I've published [jaraco.zstd](https://pypi.org/project/jaraco.zstd). Now all anyone has to do is put wheels for both zstardard and jaraco.zstd on their PYTHONPATH and then run `py -m jaraco.zstd -e filename --out-dir /tmp`......

@webknjaz Please fix.

I think #563 is the replacement.

This problem also affects pull requests. I was looking for a pull request I'd closed recently, but since it was an old one, it was buried under the "Bump transitive...

> additionally: > > ``` > .\3.11.8\Lib\site-packages\pkg_resources\__init__.py:2846: DeprecationWarning: Deprecated call to `pkg_resources.declare_namespace('zc')`. > Implementing implicit namespace packages (as specified in PEP 420) is preferred to `pkg_resources.declare_namespace`. See https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages > declare_namespace(pkg)...

This issue is a duplicate of #1973, the fix which was released in v18.10.0.