[Bug 1830348] Re: /usr/bin/software-properties-gtk:TypeError:msg_reply_handler:_enabled_reply_handler:__call__:call_async

[Sebastien Bacher]

The isssue seems an incorrectly handler of error cases

'Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 604, in msg_reply_handler
    reply_handler(*message.get_args_list(**get_args_opts))
  File "/usr/lib/python3/dist-packages/softwareproperties/gtk/LivepatchPage.py", line 363, in _enabled_reply_handler
    timeout=1200)
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 137, in __call__
    **keywords)
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 584, in call_async
    message.append(signature=signature, *args)
TypeError: Expected a string or unicode object'


Looking at some of the reports their journal log have such errors

'canonical-livepatch[851]: cannot disable machine: cannot send request: Delete https://livepatch.canonical.com/api/machine-tokens: net/http: TLS handshake timeout
update-notifier.desktop[1556]: ERROR:dbus.connection:Unable to set arguments (True, None) according to signature 'bs': <class 'TypeError'>: Expected a string or unicode object'

or

'canonical-livepatch[1161]: error in livepatch check state: check-failed
canonical-livepatch[1161]: No payload available.
update-notifier.desktop[3255]: ERROR:dbus.connection:Unable to set arguments (False, None) according to signature 'bs': <class 'TypeError'>: Expected a string or unicode object'

** Changed in: software-properties (Ubuntu)
   Importance: Undecided => High

** Changed in: software-properties (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1830348

Title:
  /usr/bin/software-properties-
  gtk:TypeError:msg_reply_handler:_enabled_reply_handler:__call__:call_async

Status in software-properties package in Ubuntu:
  Confirmed

Bug description:
  The Ubuntu Error Tracker has been receiving reports about a problem regarding software-properties.  This problem was most recently seen with package version 0.96.24.32.8, the problem page at https://errors.ubuntu.com/problem/ca90da51d0612253e93b8547563a5d9c7c900104 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
  If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/.

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