A patch from Charbel Jacquin allow onion skinning function to mypaint, making it a really nice animation tool.
Patched git trunk sources (2010/03/05) (Update 2010/04/07):
Keyboard Status Monitor (key-mon) is used for displaying key during video.
Installation (Debian/Ubuntu Linux):
sudo apt-get install g++ python-dev libglib2.0-dev python-numpy swig scons gettext python-protobuf protobuf-compiler
scons prefix=/opt/mypaint-animation install
You can replace
/usr/local and it will by in the standard path. or you can select any installation prefix you want.