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[Bug 1502578] [NEW] HPLIP plugin installer hangs forever

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Public bug reported:

Ubuntu 15.10 Wily Werewolf

The plugin needed for the scanner included with my HP CM1415fn MFP
cannot be installed. The plugin installer hangs just after I did accept
the terms and never returns. There is no difference whether that was
started from hp-setup, hp-toolbox or hp-plugin.

Please note, that hp-plugin must not be started as root anymore; it just
prints an error message then. Aso hp-plugin-ubuntu does not work at all
anymore just because of that reason.

>From the log below you can see that download of the plugin works OK but
installation hangs forever.

Console log:

bela@luna:~$ hp-plugin

HP Linux Imaging and Printing System (ver. 3.15.7)
Plugin Download and Install Utility ver. 2.1

Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.


HP Linux Imaging and Printing System (ver. 3.15.7)
Plugin Download and Install Utility ver. 2.1

Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Checking for network connection...
Downloading plug-in from: 
Receiving digital keys: /usr/bin/gpg --homedir /home/bela/.hplip/.gnupg --no-permission-warning --keyserver pgp.mit.edu --recv-keys 0x4ABA2F66DBD5A95894910E0673D770CDA59047B9
Creating directory plugin_tmp
Verifying archive integrity... All good.
Uncompressing HPLIP 3.15.7 Plugin Self Extracting Archive............................................

HP Linux Imaging and Printing System (ver. 3.15.7)
Plugin Installer ver. 3.0

Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.

Plug-in version: 3.15.7
Installed HPLIP version: 3.15.7
Number of files to install: 38

-^CTraceback (most recent call last):
  File "./plugin_install.py", line 249, in <module>
    ok = installPlugin()
  File "./plugin_install.py", line 56, in installPlugin
    status, output = utils.run(cmd, passwordObj)
  File "/usr/share/hplip/base/utils.py", line 1277, in run
    i = child.expect(EXPECT_LIST)
  File "/usr/share/hplip/base/pexpect/__init__.py", line 1418, in expect
    timeout, searchwindowsize)
  File "/usr/share/hplip/base/pexpect/__init__.py", line 1433, in expect_list
    timeout, searchwindowsize)
  File "/usr/share/hplip/base/pexpect/__init__.py", line 1502, in expect_loop
    c = self.read_nonblocking(self.maxread, timeout)
  File "/usr/share/hplip/base/pexpect/__init__.py", line 901, in read_nonblocking
    r, w, e = self.__select([self.child_fd], [], [], timeout)
  File "/usr/share/hplip/base/pexpect/__init__.py", line 1687, in __select
    return select.select(iwtd, owtd, ewtd, timeout)
KeyboardInterrupt
error: Python gobject/dbus may be not installed
error: Plug-in install failed.


^C
bela@luna:~$

** Affects: hplip (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1502578

Title:
  HPLIP plugin installer hangs forever

Status in hplip package in Ubuntu:
  New

Bug description:
  Ubuntu 15.10 Wily Werewolf

  The plugin needed for the scanner included with my HP CM1415fn MFP
  cannot be installed. The plugin installer hangs just after I did
  accept the terms and never returns. There is no difference whether
  that was started from hp-setup, hp-toolbox or hp-plugin.

  Please note, that hp-plugin must not be started as root anymore; it
  just prints an error message then. Aso hp-plugin-ubuntu does not work
  at all anymore just because of that reason.

  From the log below you can see that download of the plugin works OK
  but installation hangs forever.

  Console log:

  bela@luna:~$ hp-plugin

  HP Linux Imaging and Printing System (ver. 3.15.7)
  Plugin Download and Install Utility ver. 2.1

  Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
  This software comes with ABSOLUTELY NO WARRANTY.
  This is free software, and you are welcome to distribute it
  under certain conditions. See COPYING file for more details.

  
  HP Linux Imaging and Printing System (ver. 3.15.7)
  Plugin Download and Install Utility ver. 2.1

  Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
  This software comes with ABSOLUTELY NO WARRANTY.
  This is free software, and you are welcome to distribute it
  under certain conditions. See COPYING file for more details.

  Checking for network connection...
  Downloading plug-in from: 
  Receiving digital keys: /usr/bin/gpg --homedir /home/bela/.hplip/.gnupg --no-permission-warning --keyserver pgp.mit.edu --recv-keys 0x4ABA2F66DBD5A95894910E0673D770CDA59047B9
  Creating directory plugin_tmp
  Verifying archive integrity... All good.
  Uncompressing HPLIP 3.15.7 Plugin Self Extracting Archive............................................

  HP Linux Imaging and Printing System (ver. 3.15.7)
  Plugin Installer ver. 3.0

  Copyright (c) 2001-15 Hewlett-Packard Development Company, LP
  This software comes with ABSOLUTELY NO WARRANTY.
  This is free software, and you are welcome to distribute it
  under certain conditions. See COPYING file for more details.

  Plug-in version: 3.15.7
  Installed HPLIP version: 3.15.7
  Number of files to install: 38

  -^CTraceback (most recent call last):
    File "./plugin_install.py", line 249, in <module>
      ok = installPlugin()
    File "./plugin_install.py", line 56, in installPlugin
      status, output = utils.run(cmd, passwordObj)
    File "/usr/share/hplip/base/utils.py", line 1277, in run
      i = child.expect(EXPECT_LIST)
    File "/usr/share/hplip/base/pexpect/__init__.py", line 1418, in expect
      timeout, searchwindowsize)
    File "/usr/share/hplip/base/pexpect/__init__.py", line 1433, in expect_list
      timeout, searchwindowsize)
    File "/usr/share/hplip/base/pexpect/__init__.py", line 1502, in expect_loop
      c = self.read_nonblocking(self.maxread, timeout)
    File "/usr/share/hplip/base/pexpect/__init__.py", line 901, in read_nonblocking
      r, w, e = self.__select([self.child_fd], [], [], timeout)
    File "/usr/share/hplip/base/pexpect/__init__.py", line 1687, in __select
      return select.select(iwtd, owtd, ewtd, timeout)
  KeyboardInterrupt
  error: Python gobject/dbus may be not installed
  error: Plug-in install failed.


  
  ^C
  bela@luna:~$

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