pyiter.take_while

 1from typing import Callable, Iterable, Iterator
 2from .transform import Transform, T
 3
 4
 5class TakeWhileTransform(Transform[T, T]):
 6    """A transform that takes elements from an iterable while a predicate is true."""
 7
 8    def __init__(self, iter: Iterable[T], predicate: Callable[[T], bool]):
 9        super().__init__(iter)
10        self.predicate = predicate
11
12    def __do_iter__(self) -> Iterator[T]:
13        for e in self.iter:
14            if self.predicate(e):
15                yield e
16            else:
17                break
class TakeWhileTransform(pyiter.transform.Transform[~T, ~T]):
 6class TakeWhileTransform(Transform[T, T]):
 7    """A transform that takes elements from an iterable while a predicate is true."""
 8
 9    def __init__(self, iter: Iterable[T], predicate: Callable[[T], bool]):
10        super().__init__(iter)
11        self.predicate = predicate
12
13    def __do_iter__(self) -> Iterator[T]:
14        for e in self.iter:
15            if self.predicate(e):
16                yield e
17            else:
18                break

A transform that takes elements from an iterable while a predicate is true.

predicate