Switching from c++ to python confuse me a lot.

Searching on google sometimes give me not exactly what i need (i dont know how to search for question like "how to read input in python without overpress enter") or they show me a very complicated way to get thing done.

So can anyone provide me some good source for beginner ?

I found out that China NOI problems are very interesting and hard, of course. I dont find any editorial for these problems on the internet so can anybody provide me some editorial ?

A chinese editorial could be helpful too (I hope google translate is enough).

Most of problems can be found here

Recently, i heard that codechef is a good problems source,so can you share me some nice medium-hard problem on codechef ? Thank you for any helps you can provide