$ sudo apt-get update
$ sudo apt-get install python-babel-localedata 

python-babel-localedata is installed in your system.

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

$ sudo dpkg-query -l | grep python-babel-localedata *

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

python-babel-localedata package basic information: