"""Returns an generator of all the items in `generator` that didn't throw"""

try_yield.py

from typing import Iterator, TypeVar, Generator
T = TypeVar('T')


def try_yield(generator: Iterator[T])->Generator[T, None, None]:
    """Returns an generator of all the items in `generator` that didn't throw"""
    while True:
        try:
            yield next(generator)
        except StopIteration:
            return
        except Exception:
            pass

# Example usage converting only strings that are numbers:
numbers = list(try_yield(int(thing) for thing in ['a','1','not a number','2',4]))
# numbers = [1,2,4]