Is Every python Version commands the same?

Question

I was wondering is their any difference in coding with python on different versions and variants?

Answer 1

There is difference but very small. some inbuilt functions and other commands are different at different platforms.

Answer 2

This has sections with an overview of the differences.

https://en.m.wikipedia.org/wiki/History_of_Python

If you ever need to know exactly all of the differences, refer to the documentation.