Why do we need Python and what is difference between python and python 3

Answer 1

Because Python is programming language which can be use for almost everything. I like that simple structure.

Answer 2

Python is a programming language and you can use it for the similar purposes as other languages.
Python 3 in a version of Python preceeded by Python 2.
The versions are further divided: 3.1, 3.2 etc.
Each version brings some new features and bugfixes. You can see http://python.org and https://docs.python.org/3/whatsnew/index.html

Answer 3

check this.
https://www.google.co.in/amp/s/www.geeksforgeeks.org/important-differences-between-JUMP_LINK__&&__python__&&__JUMP_LINK-2-x-and-python-3-x-with-examples/amp/

Answer 4

Python or Python2 will end in 2020.So it's best if you learn python 3 only.