22.04 duplicity backup failed with an exception!

[Teh Kok How]

Traceback (innermost last):
  File "/home/khteh/.local/bin/duplicity", line 87, in <module>
    with_tempdir(main)
  File "/home/khteh/.local/bin/duplicity", line 70, in with_tempdir
    fn()
  File "/home/khteh/.local/lib/python3.10/site-packages/duplicity/dup_main.py", line 1564, in main
    action = commandline.ProcessCommandLine(sys.argv[1:])
  File "/home/khteh/.local/lib/python3.10/site-packages/duplicity/commandline.py", line 1241, in ProcessCommandLine
    config.backend = backend.get_backend(args[0])
  File "/home/khteh/.local/lib/python3.10/site-packages/duplicity/backend.py", line 223, in get_backend
    obj = get_backend_object(url_string)
  File "/home/khteh/.local/lib/python3.10/site-packages/duplicity/backend.py", line 209, in get_backend_object
    return factory(pu)
  File "/home/khteh/.local/lib/python3.10/site-packages/duplicity/backends/pydrivebackend.py", line 36, in __init__
    import httplib2
  File "/home/khteh/.local/lib/python3.10/site-packages/httplib2/__init__.py", line 52, in <module>
    from . import auth
  File "/home/khteh/.local/lib/python3.10/site-packages/httplib2/auth.py", line 20, in <module>
    auth_param_name = token.copy().setName("auth-param-name").addParseAction(pp.downcaseTokens)
 AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'

[edso (ed.so)]

well,

a simple web search for

> AttributeError: module 'pyparsing' has no attribute 'downcaseTokens'

suggests that upgrading httplib2 to 0.20.2+ as it seems to be a bug in there.

see e.g.
https://stackoverflow.com/questions/69694833/frappe-installation-error-attributeerror-module-pyparsing-has-no-attribute
or
https://stackoverflow.com/questions/69694833/frappe-installation-error-attributeerror-module-pyparsing-has-no-attribute

[Michael Terry (mterry)]

Yeah, it looks like you have a custom duplicity & httplib2 install (in your user pip location: ~/.local). I'd say downgrade the library, wait for a fix, or remove the custom versions. I don't think this is a deja dup issue, so I'll close. But am happy to keep responding here to help resolve this.