update-manager crashed with AttributeError in __init__(): 'AptTerminal' object has no attribute 'set_pty_object'

[Swarnendu Biswas]

I am using Ubuntu Utopic, and have the two Gnome ppas added. I did an update, and the update manager listed updates ready to be upgraded. However, update manager crashes as I press install button to start installing.

This happened twice, so it should be reproducible.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: update-manager 1:14.10.6
ProcVersionSignature: Ubuntu 3.16.0-20.27-generic 3.16.3
Uname: Linux 3.16.0-20-generic x86_64
ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CrashCounter: 1
CurrentDesktop: GNOME
Date: Fri Oct 3 09:08:38 2014
ExecutablePath: /usr/bin/update-manager
InstallationDate: Installed on 2014-09-30 (3 days ago)
InstallationMedia: Ubuntu-GNOME 14.10 "Utopic Unicorn" - Alpha amd64 (20140929)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/update-manager
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Title: update-manager crashed with AttributeError in __init__(): 'AptTerminal' object has no attribute 'set_pty_object'
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm bumblebee cdrom dip lpadmin plugdev sambashare sudo

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Krešo Kunjas (deresh)]

simillar to this:

https://bugs.launchpad.net/ubuntu/+source/update-manager/+bug/1388003

[Krešo Kunjas (deresh)]

i have found a quickfix if anyone is interested ;)

Problem is that newer libvte changed api (as of now 0.38.x in gnome ppa - 0.36 is in ubuntu repos.)

For a quickfix just apply this patch to gtk3widgets.py in /usr/lib/python3/dist-packages/aptdaemon

Patch attached.

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "patch for newer libvte (0.38 or newer)" seems to be a patch. If it isn't, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issues please contact him.]

[Brian Murray (brian-murray)]

This is fixed in Vivid.

 $ bzr log -r-1 -p
------------------------------------------------------------
revno: 981 [merge]
committer: Martin Pitt <email address hidden>
branch nick: aptdaemon
timestamp: Tue 2014-11-11 07:39:37 +0100
message:
  Port to vte 2.91 API
diff:
=== modified file 'aptdaemon/gtk3widgets.py'
--- aptdaemon/gtk3widgets.py 2014-06-26 07:07:15 +0000
+++ aptdaemon/gtk3widgets.py 2014-11-10 18:03:20 +0000
@@ -38,6 +38,9 @@
 import pty
 import re

+import gi
+gi.require_version("Vte", "2.91")
+
 import apt_pkg
 from gi.repository import GObject
 from gi.repository import GLib
@@ -391,7 +394,7 @@
         self._master, self._slave = pty.openpty()
         self._ttyname = os.ttyname(self._slave)
         self.set_size(80, 24)
- self.set_pty_object(Vte.Pty.new_foreign(self._master))
+ self.set_pty(Vte.Pty.new_foreign_sync(self._master))
         if transaction is not None:
             self.set_transaction(transaction)
------------------------------------------------------------

[Phil Weir (phil-weir)]

In case someone tries this fix and gives up without double-checking, I think there may be a typo in #4 patch - missing final paren on inserted line.

[Krešo Kunjas (deresh)]

@Phil Weir: thanks for noticing, here is an updated patch.