ModuleNotFoundError: No module named 'trimage' on Arch Linux
It's been a minute since I've last used Trimage. I probably installed it when I had initially setup Arch Linux on this system. Curious about whether or not an image that was part of a pull request I was reviewing could be improved, I launched the app.
Much to my dismay, nothing happened. No flash of the app before crashing. Not a peep of an error message. Nothing. So I tried to launch the app from the command-line:
% trimage
Traceback (most recent call last):
File "/usr/bin/trimage", line 19, in module>
import trimage
ModuleNotFoundError: No module named 'trimage'At it's core, Trimage is a Python application. Why it was complaining that it couldn't find the module is a mystery.
Finding the trimage module
So I did some research. Arch Linux has great resources, so I checked the package's page in the Arch User Repository. Seemed like I wasn't alone, but there definitely was a lack of movement on the topic.
Some suggestions were related to removing some other dependency, and that should resolve it. It all seemed a bit more involved than I would have liked.
Often in the AUR there will be multiple copies of a package, a stable version, and a "git" version. The git version, usually suffixed with -git will pull the latest and greatest code, and not a specific version.
Arch has a trimage-git package, but I opt for the stable version when available. Since the stable version was giving me grief, I installed trimage-git, which also removed the trimage package:
:: trimage-git-1.0.6.r16.gad74684-1 and trimage-1.0.6-2 are in conflict. Remove trimage? [y/N] y
Packages (2) trimage-1.0.6-2 [removal] trimage-git-1.0.6.r16.gad74684-1
Total Installed Size: 0.16 MiB
Net Upgrade Size: -0.01 MiB
:: Proceed with installation? [Y/n]
(1/1) checking keys in keyring [#####################################################################] 100%
(1/1) checking package integrity [#####################################################################] 100%
(1/1) loading package files [#####################################################################] 100%
(1/1) checking for file conflicts [#####################################################################] 100%
(2/2) checking available disk space [#####################################################################] 100%
:: Processing package changes...
(1/1) removing trimage [#####################################################################] 100%
(1/1) installing trimage-git [#####################################################################] 100%
:: Running post-transaction hooks...
(1/3) Arming ConditionNeedsUpdate...
(2/3) Updating icon theme caches...
(3/3) Updating the desktop file MIME type cache...
After it installed, I tried to run trimage again, and it worked!
Curious if that was actually the fix, I went ahead and installed trimage (replacing trimage-git) and tried to run it again.
It still worked!
My conclusion at this point is that something got screwy with the package during some update I had run previously. Reinstalling the package seemed to flush out the gremlins and get my moving again.