It is easy to make app through python?

Answer 1

For beginners:
https://www.raywenderlich.com/24252/beginning-game-programming-for-teens-with-JUMP_LINK__&&__python__&&__JUMP_LINK
game dev.

Answer 2

If you are new to programming then start by learning python. This is the easiest.

Answer 3

Mobile App? Nope. :D it is easier to develop apps in Javascript (PhoneGap), Java, Swift and C#.