Bug: Packages parsed by importlib as MultiplexedPath cannot have module size read properly.

[RaczeQ]

Bug

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• I have filled out the system info
• I have described the bug, filled in the expected outcome and the actual
  outcome including screenshots where appropriate

System info

• OS: Ubuntu
• Version: 20.04

Describe the bug

Package mkdocstrings is interpreted by importlib as an importlib.readers.MultiplexedPath and isn't cast to pathlib.Path type with glob attribute.

Error during evaluation:

Traceback (most recent call last):
  File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File ".../.venv/lib/python3.8/site-packages/licensecheck/__main__.py", line 6, in <module>
    cli()
  File ".../.venv/lib/python3.8/site-packages/licensecheck/__init__.py", line 90, in cli
    depsWithLicenses = get_deps.getDepsWithLicenses(
  File ".../.venv/lib/python3.8/site-packages/licensecheck/get_deps.py", line 116, in getDepsWithLicenses
    packages = packageinfo.getPackages(reqs)
  File ".../.venv/lib/python3.8/site-packages/licensecheck/packageinfo.py", line 122, in getPackages
    packageinfo.add(getPackageInfoLocal(requirement))
  File ".../.venv/lib/python3.8/site-packages/licensecheck/packageinfo.py", line 46, in getPackageInfoLocal
    size = getModuleSize(cast(Path, packagePath), name)
  File ".../.venv/lib/python3.8/site-packages/licensecheck/packageinfo.py", line 188, in getModuleSize
    for f in path.glob("**/*")
AttributeError: 'MultiplexedPath' object has no attribute 'glob'

Expected outcome

Skip and download info from PyPI site.

Actual outcome

AttributeError is thrown and the code stops execution.

[FredHappyface]

Hi thanks again for the pr for this. Going to close this now as that has been merged. Feel free to reopen if you need to! 😊