[Bug 1181344] Re: python-keyring timeout on import if started with sudo

[Germar]

It's the same on Arch Linux (was reported by orschiro in
https://aur.archlinux.org/packages/backintime/?comments=all and
confirmed by others):

http://pastebin.com/eS7kTHm5

** Also affects: python-secretstorage
   Importance: Undecided
       Status: New

** No longer affects: xubuntu-meta (Ubuntu)

** Changed in: python-secretstorage
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1181344

Title:
  python-keyring timeout on import if started with sudo

Status in SecretStorage:
  Confirmed
Status in “python-keyring” package in Ubuntu:
  New

Bug description:
  steps to reproduce:
  $ sudo python
  Python 2.7.3 (default, Sep 26 2012, 21:53:58)
  [GCC 4.7.2] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  >>> import keyring

  this will take ~25 seconds only on Xubuntu. If you do this on Ubuntu
  or Kubuntu (all version 12.10) it will return immediately. Also if you
  import keyring with normal user on Xubuntu it will return immediately.

  It is caused by a dbus call in /usr/share/pyshared/keyring/backend.py function SecretServiceKeyring.supported:
  $ sudo python
  Python 2.7.3 (default, Sep 26 2012, 21:53:58)
  [GCC 4.7.2] on linux2
  Type "help", "copyright", "credits" or "license" for more information.
  >>> import dbus
  >>> bus = dbus.SessionBus()
  >>> bus.get_object('org.freedesktop.secrets', '/org/freedesktop/secrets')
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
    File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 241, in get_object
      follow_name_owner_changes=follow_name_owner_changes)
    File "/usr/lib/python2.7/dist-packages/dbus/proxies.py", line 248, in __init__
      self._named_service = conn.activate_name_owner(bus_name)
    File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 180, in activate_name_owner
      self.start_service_by_name(bus_name)
    File "/usr/lib/python2.7/dist-packages/dbus/bus.py", line 278, in start_service_by_name
      'su', (bus_name, flags)))
    File "/usr/lib/python2.7/dist-packages/dbus/connection.py", line 651, in call_blocking
      message, timeout)
  dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.

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