[pluma] error loading plugin ImportError: could not import gtksourceview

Al ejecutar pluma aparece este error en consola al cargar plugins

[shell]

$pluma
ImportError: could not import gtksourceview

** (pluma:15511): WARNING **: Error initializing Python interpreter: could not import pygtksourceview.

** (pluma:15511): WARNING **: Please check the installation of all the Python related packages required by pluma and try again.

** (pluma:15511): WARNING **: Cannot load python plugin Python ‘External Tools’ since pluma wasnot able to initialize the Python interpreter.

** (pluma:15511): WARNING **: Error loading plugin ‘External Tools’

[/shell]

Para solucionarlo hay que instalar un paquete de python que falta en el sistema:

[shell]

sudo apt-get install python-gtksourceview2

[/shell]