come back and find python 3

[pipehappy]

Hi, all

Just come back to use Python, but find something has changed in Python
3.
Like package name is no longer with capitalized char for each word in
the name;
convenient print is removed.

And I don't know why can someone inside explain
to me about this. I think old package name is better for read while
new is better
to code. And old print is good tool for new comers.

Any other notable change between this 2 version? Or is there links to
articles
about the changes not in a developer view but a user view?

Best