$ sudo apt-get update
$ sudo apt-get install python-gnomekeyring 

python-gnomekeyring is installed in your system.

Make ensure the python-gnomekeyring package were installed using the commands given below,

$ sudo dpkg-query -l | grep python-gnomekeyring *

You will get with python-gnomekeyring package name, version, architecture and description in a table

python-gnomekeyring package basic information: