Boolean Constants

[KEggensperger]

Constants cannot be defined as a Boolean, categoricals can:

from ConfigSpace.hyperparameters import CategoricalHyperparameter, Constant

# works
a = CategoricalHyperparameter("a", choices(True, False))

# does not work
b = Constant("b", value=True)

[eddiebergman]

Given that the solution for Constant booleans is Constant("somebool", value="True"), this would be a nice thing to fix.

Bumping this issue, it would allow for better Typing in autosklearn components that require boolean parameters.

class SomeComponent:
    def __init__(
       self, 
       somebool: str  
   ) -> None:
       self.somebool = True if somebool == "True" else False

From Python 3.8 onwards it could be made a little better with somebool: Literal["True", "False"] but it would be nice to have the Typing be somebool: bool