Comment # 5 on bug 988328 from Dominique Leuenberger

(In reply to Mario Manno from comment #4)
> I tried caffeine 2.8.3 from GNOME:Apps, but 'caffeine-indicator' is still
> not starting.
> 
> Traceback (most recent call last):
>   File "<frozen importlib._bootstrap>", line 890, in _find_spec
> AttributeError: 'DynamicImporter' object has no attribute 'find_spec'
> 
> During handling of the above exception, another exception occurred:
> 
> Traceback (most recent call last):
>   File "/usr/bin/caffeine-indicator", line 30, in <module>
>     from gi.repository import GLib, Gtk, GObject, AppIndicator3
>   File "/usr/lib64/python3.5/site-packages/gi/importer.py", line 127, in
> find_module
>     'introspection typelib not found' % namespace)
> ImportError: cannot import name AppIndicator3, introspection typelib not
> found

That's a packaging bug - the auto-req scanner does not detect what is needed
here it seems.

try: zypper in "typelib(AppIndicator3)"