definition

definition is a Python subset where you have to define a function to even run the program (variables, lists and dictionaries don't count, runing the first defined function is done automaticly)

Syntax

You have to define a function and put your code into that function:

def main():
 x=0; print(x)

Variables can be outside functions. But that makes the variable global

To disable it from entering a function, you just do this:

x=0
def main():
 print(x)
def main2():
 dont(x)
 print("x cannot enter this function")
run(main,main2)

And to make a local variable and add it to a function, do this:

def main():
 x=0; print(x)
def main2():
 do(x)
 print(f"{x=}","value taken from the main function")
run(main,main2)

run is self-explanatory. It just runs functions on a list

Examples

Hello, world!

def m():
 print("Hello, world!")