Before going to start just try to answer the question .What is a program ? can you answer this question are not? .If not?
A program is a set of instructions written in a sequence that guides the computer to solve a particular task.
Python was renamed after reptile because the reptile has a flexible body as similar as reptile python too is easy , simple and high flexible.
Python is an open source, modern, powerful and high level programming language.
Features of python : These features helps us in many ways
As a coin has head and tail every thing in our surroundings has both advantages and disadvantages. As similarly python too has both advantages and disadvantages.
Advantages :
installing python shows that it is free and open source: