On installing "sklearn" package for working and sharing on sentiment analysis - Error observed

Attached the screenshot for reference on reported problem

Please share the sklearn mirrored weblink for download or steps to follow to install sklearn properly

With help of command with package named : scikit-learn were able to install.
First time while performing all database of nltk.download(‘all’) => Everything got downloaded.

After restarting kernel- While performing once again,
resulted with error : [nltk_data] | [Errno 28] No space left on device