py39-anyio @2.2.0_0: error: No matching distribution found for setuptools_scm

[ShadSterling (Shad Sterling)]

Looks like there's something wrong with dependencies, either setuptools or wheel; both py39-wheel @0.36.2_0 and py39-setuptools @51.3.3_0 are installed

:debug:build system:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-anyio/py39-anyio/work/anyio-2.2.0" && /opt/local/Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9 setup.py --no-user-cfg build -j16 
:info:build WARNING: The wheel package is not available.
:info:build WARNING: The index url "''" seems invalid, please provide a scheme.
:info:build WARNING: Url '''/setuptools-scm/' is ignored. It is either a non-existing path or lacks a specific scheme.
:info:build WARNING: Url '''' is ignored. It is either a non-existing path or lacks a specific scheme.
:info:build ERROR: Could not find a version that satisfies the requirement setuptools_scm
:info:build ERROR: No matching distribution found for setuptools_scm
:info:build Traceback (most recent call last):
:info:build   File "/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/setuptools/installer.py", line 119, in fetch_build_egg
:info:build     subprocess.check_call(cmd)
:info:build   File "/opt/local/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py", line 373, in check_call
:info:build     raise CalledProcessError(retcode, cmd)
:info:build subprocess.CalledProcessError: Command '['/opt/local/Library/Frameworks/Python.framework/Versions/3.9/bin/python3.9', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', '/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-anyio/py39-anyio/work/.tmp/tmpnpmfhfxs', '--quiet', '--index-url', "''", '--find-links', "''", 'setuptools_scm']' returned non-zero exit status 1.

Not sure if this is still related to reinstalling everything after moving to Big Sur; py39-anyio is installed as a dependency, not requested.

[reneeotten (Renee Otten)]

I already fixed that in this commit ; please do a selfupdate and try again.