Which package will provide pygtk, gtk, pyserial and libsvg2-common for Inkscape extension

Question

I have Xubuntu 16.04 installed. I need to install an Inkscape extension which requires

pygtk and gtk
pyserial
librsvg2-common

When I do apt-get install pygtK or apt-get install libgtk I get the message

unable to locate package ...

Any suggestions?

Answer 1

I have found the answer. I needed to install libgtk2.0 or libgtk3.0.