I've been trying to install some Python libraries and packages and keep getting this error. This is a sample but the same issue i face with matplotlib and panda and so on.

sudo apt-get install python-scipy 

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Package python-scipy is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source



E: Package 'python-scipy' has no installation candidate

I tried enabling universe repository andit turns out it is already enabled. So i can't figure out the issue yet.
Thank in advance for your help.