HPLIP gone again

**cmcanulty** · September 14th, 2017

I need at least hplip-3.16.5 to run the library hp officejet pro 8740. It was running fine and then hplip disappeared from all 16 computers. Now when I try to install hplip I get this error. I have spent all day trying to get this to work. It has to be installed as a network printer using hplip or the scanner won't work over the network. The missing dependencies I can't find anywhere. I have installed a bunch of qt5 and pyqt5 but can't find the exact file needed anywhere.Here is the exact error message. I am running xubuntu 16.04 64 bit all updated. I tried this with both hplip 3.17.7 and 3.16.11 which worked until it all disappeared.Thank you.

Code:

error: A required dependency 'pyqt5-dbus (PyQt 5 DBus - DBus Support for PyQt5)' is still missing.
error: A required dependency 'pyqt5 (PyQt 5- Qt interface for Python (for Qt version 4.x))' is still missing.
error: Installation cannot continue without these dependencies.
error: Please manually install this dependency and re-run this installer.

**pdc** · September 14th, 2017

so my take from the messages you got is that you need

Code:

pyqt5-dbus

and

Code:

pyqt5

to be installed;

........... happy to be told I am wrong ...............

so what does

Code:

dpkg -l pyqt5-dbus

and

Code:

dpkg -l pyqt5

give if you paste those two commands into a terminal please?

**cmcanulty** · September 14th, 2017

Code:

librarian@DarcyRemote:~$ dpkg -l pyqt5-dbus
dpkg-query: no packages found matching pyqt5-dbus
librarian@DarcyRemote:~$ dpkg -l pyqt5
dpkg-query: no packages found matching pyqt5
librarian@DarcyRemote:~$

**oldfred** · September 15th, 2017

I often use synaptic so I know exact names.

Partial results show these but not exact name your error has.
Is HPLIP using python or python3?

apt policy python-dbus*
python-dbus.mainloop.pyqt5
python-dbus

apt policy python3-dbus*
python3-dbus.mainloop.qt
python3-dbus.mainloop.pyqt5
python3-dbus

**pdc** · September 15th, 2017

as old fred says, with exact names one can be clearer what is missing but with dbus our synaptic shows the options as in the thumbnail; we have hplip 3.16.3 installed,

and the command

Code:

apt policy python-dbus*

shows

Code:

python-dbus: Installed: 1.2.0-3

and

Code:

python-dbus-dev: Installed: 1.2.0-3

**cmcanulty** · September 15th, 2017

Code:

librarian@DarcyRemote:~$ apt policy python-dbus*
python-dbus-dbg:
  Installed: (none)
  Candidate: 1.2.0-3
  Version table:
     1.2.0-3 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
python-dbus-dev:
  Installed: (none)
  Candidate: 1.2.0-3
  Version table:
     1.2.0-3 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main i386 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main i386 Packages
python-dbus-doc:
  Installed: (none)
  Candidate: 1.2.0-3
  Version table:
     1.2.0-3 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main i386 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main i386 Packages
python-dbus.mainloop.pyqt5-dbg:
  Installed: (none)
  Candidate: 5.5.1+dfsg-3ubuntu4
  Version table:
     5.5.1+dfsg-3ubuntu4 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
python-dbus.mainloop.pyqt5:
  Installed: (none)
  Candidate: 5.5.1+dfsg-3ubuntu4
  Version table:
     5.5.1+dfsg-3ubuntu4 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
python-dbus:
  Installed: 1.2.0-3
  Candidate: 1.2.0-3
  Version table:
 *** 1.2.0-3 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        500 http://cz.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status
python-dbus-common:
  Installed: (none)
  Candidate: (none)
  Version table:
python-dbusmock:
  Installed: (none)
  Candidate: 0.16.3-1
  Version table:
     0.16.3-1 500
        500 http://ca.archive.ubuntu.com/ubuntu xenial/universe amd64 Packages
        500 http://ca.archive.ubuntu.com/ubuntu xenial/universe i386 Packages
librarian@DarcyRemote:~$

Also there is so much python installed I am not sure what is missing 3 atttached screenshots show the installed python appsScreenshot_2017-09-15_10-25-03.png Screenshot_2017-09-15_10-25-24.png Screenshot_2017-09-15_10-25-43.png

**pdc** · September 15th, 2017

so to me when your system says

Installed: (none)

, I would take it that dbus is not installed;

to me, the first error message said

A required dependency 'pyqt5-dbus (PyQt 5 DBus - DBus Support for PyQt5)' is still missing.

and I would have thought it reasonable to suggest installing that; what would you feel

**cmcanulty** · September 15th, 2017

dbus is installed but the error asks for pyqt5-dbus, which I can't find anywhere. Thank you again

**pdc** · September 16th, 2017

have a look at that thumbnail that I attached to post #5. I opened synaptic;

you can see what I searched on; and the result I got

I wonder would you get the same result: seems to me those are what you need installed; to satisfy the demands of your system; I see you have a much more complicated setup than many of us (such as me ......... who just has a standalong desktop .....)