What is the equivalent to Dart's ! operator in python (for typing)
Question:
I’m building a website with a Flutter/Dart front-end and a python backend. I absolutely love Dart’s rigorous static checking (saves me ridiculous amounts of time debugging), so I’ve started using type checking in python as well.
In Dart / Flutter, I can specify a variable as having type int or null as follows:
final int? myInt = 1;
When working with myInt at future points in the code, I can then tell Dart’s type checker that the variable is currently not null by appending an exclamation mark, e.g. as follows:
final int myIntNotNull = myInt!;
In python, I can similarly specify a variable as having type int or null as follows:
myInt:int|None = 1
My question is: Is there a similarly concise way to tell python’s type checker that I am sure that myInt is currently not null?
Answers:
After some discussion and further research, it seems that the best option for this is to use the typing cast functionality.
from typing import cast
myIntNotNull:str = cast(int,myInt)
I’m building a website with a Flutter/Dart front-end and a python backend. I absolutely love Dart’s rigorous static checking (saves me ridiculous amounts of time debugging), so I’ve started using type checking in python as well.
In Dart / Flutter, I can specify a variable as having type int or null as follows:
final int? myInt = 1;
When working with myInt at future points in the code, I can then tell Dart’s type checker that the variable is currently not null by appending an exclamation mark, e.g. as follows:
final int myIntNotNull = myInt!;
In python, I can similarly specify a variable as having type int or null as follows:
myInt:int|None = 1
My question is: Is there a similarly concise way to tell python’s type checker that I am sure that myInt is currently not null?
After some discussion and further research, it seems that the best option for this is to use the typing cast functionality.
from typing import cast
myIntNotNull:str = cast(int,myInt)