[Tutor] Is the use of -> usual in Python?

[Mats Wichmann]

On 2/3/21 5:25 PM, Phil wrote:
> |The following is a snippet from a class that I came across yesterday. 
> I'm not familiar with the use of "->" in Python code. Is it usual 
> practice? Nothing showed up during an Internet search. |
> ||def receive(self) -> str: line = 
> self.serial.read_until(self.TERMINATOR) return 
> line.decode('UTF8').strip() def send(self, text: str) -> bool: line = 
> '%s\r\f' % text self.serial.write(line.encode('|UTF8'))|# the line 
> should be echoed. # If it isn't, something is wrong. return text == 
> self.receive() | |-- Regards,
> Phil

It's the function annotation syntax (actunally not just for functions). 
It's a runtime no-op i.e. the Python interpreter ignores it, but 
type-aware static checkers understand it.  Search for something like 
"python type hints" to get more info.