none python Code Snippet in 2025
listintermediate
Last Updated: 11 January 2025
Checks if the provided function returns True for at least one element in the list.
- Use
all()andfnto check iffnreturnsFalsefor all the elements in the list.
def none(lst, fn = lambda x: x): return all(not fn(x) for x in lst)
none([0, 1, 2, 0], lambda x: x >= 2 ) # False none([0, 0, 0]) # True
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