Python standard library: built-in functions all (iterable) and pythoniterable

Python standard library: built-in functions all (iterable) and pythoniterable

If all the elements of an object that can be iterated are not empty (or empty iteration object), True is returned. This function is mainly used to determine whether objects such as lists, tuples, and dictionaries are empty elements. For example, a list with 10000 elements is provided. If this function is not provided, it must be implemented through loops, the computing speed will be slow. This function is equivalent to the functions of the following code:

Def all (iterable ):

For element in iterable:

If not element:

Return False

Return True

Example:

# All () function Example a = [] B = {,} c = (1, 3, '', 5) d = [1, 2, none] print ('a: ', all (a),' B: ', all (B), 'c:', all (c), 'd :', all (d ))

The output result is as follows:

A: True B: True c: False d: False

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