Am 29.01.2018 um 20:46 schrieb Brian Potkin:
I tested the complete workaround and it really works! Thank you for your analysis, Brian! I learned a lot about the background processes of hplip.That worked but you cannot expect a user to go through all of this. Devising a solution still lies in the hands of the hplip team. Whether they will implement one is another matter.
To sum up my own experiences: It is not crucial to change the debian version to 8.6. hp-doctor will automatically fall back to version 8.6:
Checking for Deprecated items....error: This distro (i.e debian 9.3) is either deprecated or not yet supported. The diagnosis is limited on unsupported platforms. Do you want to continue?(y=yes*, n=no):yChecking for Dependencies....warning: 2-9.3 version is not supported. Using 2-8.6 versions dependencies to verify and install...
It is necessary to replace 'su' in line 35 with 'sudo' in password.py.And to replace "su -c" and "su_sudo" with "sudo" in the lines 4118 to 4122 in the file distros.dat.
Then the doctor is able to heal the missing dependencies. (Irrespective of the question how crucial these dependencies really are! I also wonder at the listing.)
But as Brian pointed out, this is just a workaround, not a solution. hp-doctor should be able to accept both types of verification. This is intended in the file /usr/share/hplip/doctor.py (line 102 to 122) and it doesn´t work, at least not with debian. And this is undoubtedly a bug. We will see whether the hplip developers will react to my bug report there.
Regards Reinhard