Understanding a def operation.

Question

def print_nums(x):
for i in range(x):
print(i)
return
print_nums(10)

Can anyone please explain what did line one do? what is the "(X)" in the end of line 1 do?

Answer 1

Line 1 (to the return statement) is function defination and x is the parameter that is passed
https://www.programiz.com/JUMP_LINK__&&__python__&&__JUMP_LINK-programming/function

Answer 2

In first line you are creating a new function.function name is print_nums and (x) is we are passing parameter in function.we need some parameters in function according to our need to work with function.
e.g
Let you have a x variable and you want to print it with the help of function.you can create a function and pass a parameter with name anything let(x) which refer to x variable means now function has x variable copy,which you want to print.here x is parameter for our function.

Other code is function logic.