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Data update

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Ingy döt Net 2024-03-06 22:25:12 -08:00
parent ed705008a8
commit 0df55f9f24
2196 changed files with 32999 additions and 3075 deletions
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12
Task/Monads-List-monad/Python/monads-list-monad.py
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@ -2,7 +2,6 @@
from __future__ import annotations
from itertools import chain
from typing import Any
from typing import Callable
from typing import Iterable
from typing import List
@ -10,6 +9,7 @@ from typing import TypeVar
T = TypeVar("T")
U = TypeVar("U")
class MList(List[T]):
@ -17,15 +17,15 @@ class MList(List[T]):
def unit(cls, value: Iterable[T]) -> MList[T]:
return cls(value)
def bind(self, func: Callable[[T], MList[Any]]) -> MList[Any]:
def bind(self, func: Callable[[T], MList[U]]) -> MList[U]:
return MList(chain.from_iterable(map(func, self)))
def __rshift__(self, func: Callable[[T], MList[Any]]) -> MList[Any]:
def __rshift__(self, func: Callable[[T], MList[U]]) -> MList[U]:
return self.bind(func)
if __name__ == "__main__":
# Chained int and string functions
# Chained int and string functions.
print(
MList([1, 99, 4])
.bind(lambda val: MList([val + 1]))
@ -39,14 +39,14 @@ if __name__ == "__main__":
>> (lambda val: MList([f"${val}.00"]))
)
# Cartesian product of [1..5] and [6..10]
# Cartesian product of [1..5] and [6..10].
print(
MList(range(1, 6)).bind(
lambda x: MList(range(6, 11)).bind(lambda y: MList([(x, y)]))
)
)
# Pythagorean triples with elements between 1 and 25
# Pythagorean triples with elements between 1 and 25.
print(
MList(range(1, 26)).bind(
lambda x: MList(range(x + 1, 26)).bind(