How can I unshorten a URL?

Question

I want to be able to take a shortened or non-shortened URL and return its un-shortened form. How can I make a python program to do this?

Additional Clarification:

Answer 1

If you are using Python 3.5+ you can use the Unshortenit module that makes this very easy:

from unshortenit import UnshortenIt
unshortener = UnshortenIt()
uri = unshortener.unshorten('https://href.li/?https://example.com')