16 lines
413 B
Python
16 lines
413 B
Python
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from typing import Callable, Iterable, Optional, TypeVar
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T = TypeVar("T")
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def filter_none(ls: Iterable[Optional[T]]) -> filter[T]:
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return filter(lambda x: x is not None, ls)
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S = TypeVar("S")
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def safe_map(func: Callable[[T], S], ls: Iterable[T]) -> map[Optional[S]]:
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def safe_func(arg):
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try:
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return func(arg)
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except:
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return None
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return map(safe_func, ls)
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