all & any

def all(*args, **kwargs):
    """
    Return True if bool(x) is True for all values x in the iterable.

    If the iterable is empty, return True.
    """

例：

print(all([1, 2, 3, 0]))   # False
print(all([1, 2, 3]))      # True
print(all([1, 2, 3, '']))  # False
print(all(''))             # True

any

def any(*args, **kwargs):
    """
    Return True if bool(x) is True for any x in the iterable.

    If the iterable is empty, return False.
    """

例：

print(any([0, '']))        # False
print(any([1, 2, 3]))      # True
print(any([1, 2, 3, '']))  # True
print(any(''))             # False