Comment 6 for bug 1440504

Went through the dependencies , hope this helps:
* deja-dup - dependency duplicity still needs porting to python3 (unknown if this is an issue for deja-dup/libpeas) lp bug is 1440372
* diodon(-dev)/libdiodon0 - no python found
* emerillon - no python found
* entangle/gir1.2-entangle-0.1 - no python found
* eog - no python mentioned
* eog-plugins - only python3 depends found
* gedit(-dev/-plugins) - only python3 depends found
* gedit-valencia-plugin - no python found
* gitg - no python found
* gnome-core-devel (for libpeas-dev), meta package depends on python-gobject-dev (python2) - guessing this doesn't really matter
* gtranslator - **depends on python2**
* liferea - **depends on python2**
* totem-plugins/libtotem0 - only python3 depends found
* roger-router(-cli)/libroutermanager0 - - no python found
* rhythmbox (and many friends) - only python3 depends found

To summarize: gtranslator and liferea need python2, and deja-dup might be an issue.