Python any() Function

The any() function returns True if any item in an iterable is True. Otherwise, it returns False.

Syntax

any(iterable)

any() Parameters

Python any() function parameters:

any() Return Value

Python any() function returns a boolean value:

• True if at least one element of an iterable is true
• False if all elements are false or if an iterable is empty

Falsy Values in Python

Falsy values are those that evaluate to False in a boolean context:

• Constants defined to be false: None and False.
• Zero of any numeric type: Integer (0), Float (0.0), Complex (0j), Decimal(0), Fraction(0, 1).
• Empty sequences and collections: Lists ([]), Tuples (()), Dictionaries ({}), Sets (set()), Strings (""), range(0)
• Any custom object for which the __bool__() method is defined to return False, or the __len__() method returns 0 when __bool__() is not defined.

Examples

Some examples of how to use any() function.

any() function on List

my_list = [0, 0, 0]
print(any(my_list))   # Output: False

my_list = [0, 1, 1]
print(any(my_list))   # Output: True

output

False
True

Other examples:

my_list = [False, 0, 1]
print(any(my_list))   # Output True

my_list = ('', [], 'green')
print(any(my_list))   # Output True

my_list = {0j, 3+4j, 0.0}
print(any(my_list))   # Output True

output

True
True
True

any() function on a Dictionary

The function any() can be used on dictionaries.

When you use any() function on a dictionary, it checks if any the keys of the dictionary are true (and not the values).

dict1 = {0: 'Zero', 0: 'Nil'}
print(any(dict1))   # Output: False

dict2 = {'Zero': 0, 'Nil': 0}
print(any(dict2))   # Output: True

output

False
True

any() function on Empty Iterable

The function any() can be used on iterables. In particular, if the iterable is empty, the function returns False.

my_list = []
print(any(my_list))   # Output: False

my_list = [[], []]
print(any(my_list))   # Output: False

output

False
False