Failure to install in CKAN 2.9 Docker Dev environment

[mepearson]

Running the Dev docker install, and get the following error when trying to include the pages extension:

Error processing line 1 of /usr/local/lib/python3.9/site-packages/ckanext-pages-nspkg.pth:

  Traceback (most recent call last):
    File "/usr/local/lib/python3.9/site.py", line 177, in addpackage
      exec(line)
    File "<string>", line 1, in <module>
    File "<frozen importlib._bootstrap>", line 562, in module_from_spec
  AttributeError: 'NoneType' object has no attribute 'loader'