[Duplicity-talk] KeyError: '_module' with gdocs

[Norman Goldstein]

After installing Fedora 26 0x86 64-bit, am unable to get duplicity to 
connect with gdocs (worked fine on Fedora 24).

Python 2.7.13
duplicity 0.7.13.1
pydrive 1.3.1

Have redone the google developer authorization procedure, but keep 
getting the following traceback:

  File "/usr/bin/duplicity", line 1540, in <module>
    with_tempdir(main)
  File "/usr/bin/duplicity", line 1534, in with_tempdir
    fn()
  File "/usr/bin/duplicity", line 1372, in main
    action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/usr/lib64/python2.7/site-packages/duplicity/commandline.py", 
line 1140, in ProcessCommandLine
    backup, local_pathname = set_backend(args[0], args[1])
  File "/usr/lib64/python2.7/site-packages/duplicity/commandline.py", 
line 1015, in set_backend
    globals.backend = backend.get_backend(bend)
  File "/usr/lib64/python2.7/site-packages/duplicity/backend.py", line 
223, in get_backend
    obj = get_backend_object(url_string)
  File "/usr/lib64/python2.7/site-packages/duplicity/backend.py", line 
209, in get_backend_object
    return factory(pu)
  File 
"/usr/lib64/python2.7/site-packages/duplicity/backends/pydrivebackend.py", 
line 69, in __init__
    gauth.CommandLineAuth()
  File "/usr/lib/python2.7/site-packages/pydrive/auth.py", line 111, in 
_decorated
    self.LoadCredentials()
  File "/usr/lib/python2.7/site-packages/pydrive/auth.py", line 289, in 
LoadCredentials
    self.LoadCredentialsFile()
  File "/usr/lib/python2.7/site-packages/pydrive/auth.py", line 308, in 
LoadCredentialsFile
    self.credentials = storage.get()
  File "/usr/lib/python2.7/site-packages/oauth2client/client.py", line 
407, in get
    return self.locked_get()
  File "/usr/lib/python2.7/site-packages/oauth2client/file.py", line 
54, in locked_get
    credentials = client.Credentials.new_from_json(content)
  File "/usr/lib/python2.7/site-packages/oauth2client/client.py", line 
302, in new_from_json
    module_name = data['_module']
KeyError: '_module'

The credentials file is the json file that I downloaded from the Google 
site.

?? .... thanks.