urllib and urllib2 are in the stdlib of Python2, and neither of them has a very friendly interface. They have been consolidated to just urllib in Python3. urll

urllib and urllib2 are in the stdlib of Python2, and neither of them has a very friendly interface. They have been consolidated to just urllib in Python3. urllib3 is a 3rd-party library that powers requests. It tries to offer a more powerful set of features behind a better interface.