Syntax question

[Manfred Lotz]

On Sun, 16 Aug 2020 10:12:04 +0200
Klaus Jantzen <k.d.jantzen at mailbox.org> wrote:

> Hi,
> 
> the other day I came across the book "Classic Computer Science
> Problems in Python" by David Kopec.
> 
> The function definitions in the examples  like
> 
> =====
> def fib2(n: int) -> int:
>      if n < 2:  # base case
>          return n
>      return fib2(n - 2) + fib2(n - 1)  # recursive case
> 
> 
> if __name__ == "__main__":
>      print(fib2(5))
>      print(fib2(10))
> 
> =====
> 
> use a syntax that I have never seen on this list or in other
> publications.
> 

What do you mean? The 'n:int' and '-> int'? If yes, this is type
hinting.

See here: https://docs.python.org/3/library/typing.html

-- 
Manfred