Viewmaster get holdings path and python version issues

[rfrenchseti]

From rms-webserver created by juzen2003: SETI/rms-webserver#78

• If there is a space in the path of the holdings directory, the holdings directory won't be detected by viewmaster.
  • one fix to accept spaces in the path:
    • In viewmaster.py, at line 180 inside the get_holdings_paths function, change to value = ' '.join(parts[2:])
• If the python subversion has two digits instead of one, the program will be looking at the wrong python version under site-packages and an error will be raised due to missing python caused by the wrong version.
  • one fix to get the correct python version under site-packages:
    • In wsgi_init.py, at line 58, change to site_packages = os.path.join(venv, 'lib/python%s/site-packages' % ('.'.join(sys.version.split(' ')[0].split('.')[:2])))

[rfrenchseti]

I think the better way to do the latter is:

version_num = f'{sys.version_info[0]:d}.{sys.version_info[1]:d}'
site_packages = os.path.join(venv, f'lib/python{version_num}/site-packages')