BUG: Windows installation error

[duytnguyendtn]

I was tasked to check if our environments are still working here. As of writing, the installation works on my macOS (Validation notebook runs successfully and my Specviz Demo notebook runs without hiccup), but I ran into an issue on the Windows side. Figured I'd report it in case anyone in the future is looking, but obviously don't have the bandwidth to diagnose:

Running on Windows 11 22000.434 with Python 3.9.7 (tags/v3.9.7:1016ef3, Aug 30 2021, 20:19:38) [MSC v.1929 64 bit (AMD64)] on win32

pre-requirements.txt install worked ok. Failed on pip install -r requirements_windows.txt:

ERROR: Could not find a version that satisfies the requirement pyregion>=2.0 (from aplpy) (from versions: 0.1rc0, 1.0, 1.0.1, 1.1, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.2, 2.0, 2.1.1b1, 2.1.1)
ERROR: No matching distribution found for pyregion>=2.0

Specifically:

Collecting pyregion==2.0
  Using cached pyregion-2.0.tar.gz (1.1 MB)
    ERROR: Command errored out with exit status 1:
     command: 'E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\Scripts\python.exe' -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Duy\\AppData\\Local\\Temp\\pip-install-k8tmmcch\\pyregion_5b22fa19ab4044ebb857b95af1d76652\\setup.py'"'"'; __file__='"'"'C:\\Users\\Duy\\AppData\\Local\\Temp\\pip-install-k8tmmcch\\pyregion_5b22fa19ab4044ebb857b95af1d76652\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4'
         cwd: C:\Users\Duy\AppData\Local\Temp\pip-install-k8tmmcch\pyregion_5b22fa19ab4044ebb857b95af1d76652\
    Complete output (40 lines):
    running egg_info
    creating C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info
    writing C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info\PKG-INFO
    writing dependency_links to C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info\dependency_links.txt
    writing requirements to C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info\requires.txt
    writing top-level names to C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info\top_level.txt
    writing manifest file 'C:\Users\Duy\AppData\Local\Temp\pip-pip-egg-info-f8x99qr4\pyregion.egg-info\SOURCES.txt'
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\Duy\AppData\Local\Temp\pip-install-k8tmmcch\pyregion_5b22fa19ab4044ebb857b95af1d76652\setup.py", line 116, in <module>
        setup(
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\setuptools\__init__.py", line 153, in setup
        return distutils.core.setup(**attrs)
      File "C:\Program Files\Python\Python309\lib\distutils\core.py", line 148, in setup
        dist.run_commands()
      File "C:\Program Files\Python\Python309\lib\distutils\dist.py", line 966, in run_commands
        self.run_command(cmd)
      File "C:\Program Files\Python\Python309\lib\distutils\dist.py", line 985, in run_command
        cmd_obj.run()
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\setuptools\command\egg_info.py", line 299, in run
        self.find_sources()
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\setuptools\command\egg_info.py", line 306, in find_sources
        mm.run()
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\setuptools\command\egg_info.py", line 541, in run
        self.add_defaults()
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\setuptools\command\egg_info.py", line 578, in add_defaults
        sdist.add_defaults(self)
      File "C:\Program Files\Python\Python309\lib\distutils\command\sdist.py", line 228, in add_defaults
        self._add_defaults_ext()
      File "C:\Program Files\Python\Python309\lib\distutils\command\sdist.py", line 311, in _add_defaults_ext
        build_ext = self.get_finalized_command('build_ext')
      File "C:\Program Files\Python\Python309\lib\distutils\cmd.py", line 299, in get_finalized_command
        cmd_obj.ensure_finalized()
      File "C:\Program Files\Python\Python309\lib\distutils\cmd.py", line 107, in ensure_finalized
        self.finalize_options()
      File "E:\STScI\gitRepos\aas239-jwebbinar\envbuildtest2022\lib\site-packages\astropy_helpers\commands\build_ext.py", line 260, in finalize_options
        src_path = os.path.relpath(
      File "C:\Program Files\Python\Python309\lib\ntpath.py", line 703, in relpath
        raise ValueError("path is on mount %r, start on mount %r" % (
    ValueError: path is on mount 'E:', start on mount 'C:'
    ----------------------------------------

Looks like it has to do with my environment being on a different drive. 🤷