Where does Komodo keep settings data?

Komodo stores preferences, macros, templates, keybinding schemes and other settings in a user-specific directory called the user data directory. The name and location of this directory varies depending on the operating system and Komodo version:

Windows

C:\Users\<user>\AppData\Local\ActiveState\Komodo[IDE|Edit]\<version>

Linux

~/.komodo[ide|edit]/<version>

Mac OS X

~/Library/Application Support/Komodo[IDE|Edit]/<version>

The location of this directory can be overridden using the KOMODO_USERDATADIR environment variable.

Where does Komodo log errors?

Komodo logs its errors in a file called pystderr.log which resides within your user data folder described above.

note that this file is truncated each time Komodo restarts.