Any & All in Python?

Python provides two built-ins functions for “AND” and “OR” operations are All and Any functions.

Python any() function

The any() function returns True if any item in an iterable are true, otherwise it returns False. However, if the iterable object is empty, the any () function will return False.

Syntax

any(iterable)

The iterable object can be a list, tuple or dictionary.

Example 1

>>> mylst = [ False, True, False]
>>> x = any(mylst)
>>> x
True

Output

Output is True because the second item is True.

Example 2

Tuple – check if any item is True

>>> #Tuple - check if any item is True
>>> mytuple = (0, 1, 0, False)
>>> x = any(mytuple)
>>> print(x)
True

Example 3

Set – Check if any item is True

>>> myset = {0, 1, 0 }
>>> x = any(myset)
>>> print(x)
True

Example 4

Dictionary – check if any item is true in dictionary

>>> mydict = { 0 : "Apple", 1: "Banana"}
>>> x = any(mydict)
>>> print(x)
True

Return Value from any()

any() returns:

• True – if atleast one item of the iterable is True.

• False – if all the items are False or if an iterable is empty.

Python all() function

The all() function returns True if all items in an iterable are true, otherwise it returns False. If the iterable object is empty, the all() function all returns True.

Syntax

all(iterable)

The iterable object can be list, tuple or dictionary.

Example1 List- Check if all items are True

>>> mylst = [True, True, False]
>>> x = all(mylst)
>>> print(x)
False

Above result shows False, as one of the item in the list is False.

Example 2 Tuple – Check if all items are True in tuple

>>> mytuple = (0, True, False)
>>> x = all(mytuple)
>>> print(x)
False

Example 3: Set – check if all items are True in Set.

>>> myset = {True, 1, 1}
>>> x = all(myset)
>>> print(x)
True

Example 4: Dictionary – check if all item are true in dictionary

>>> mydict = {0: "Apple", 1:"Banana"}
>>> x = all(mydict)
>>> print(x)
False

Return value from all()

The all() method returns

• True – if all elements in an iterable are true

• False – if any element in an iterable is false

Jennifer Nicholas

Updated on: 30-Jul-2019

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