any() method in Python

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The any() method returns true if any element of iterable is true, or false if iterable is empty. It is equivalent to:

def any(iterable):
    for element in iterable:
        if element:
            return True
    return False

If all are null, 0, or False, it returns False; if (as long as there are non-null or 0 or False) not all are null, 0, or False, it returns True.

Related course: Complete Python Programming Course & Exercises

Syntax

any(iterable)

Description of parameters.

• iterable - iterative, including string, list, dict, tuple, set()

Return value.

How any() method in Python works

The following example shows how to use the any() function

# List list, none of the elements are empty or 0. True
print(any([1,2,3,4,5]))

# list, there is an empty element. true
print(any(['a','b','c','d',''']))

# list list, there is an element of 0. True
print(any([1,2,3,0,5]))

# list, all elements are 0,'',false. false
print(any([0,False,''])

# elementtuple, none of the elements are empty or 0. True
print(any((1,2,3,4,5)))

# elementtuple, there is an empty element. true
print(any(('a','b','c','d','')))

# elementtuple, there is an element of 0. True
print(any((1,2,3,0,5)))

# elementtuple, all elements are 0,'',false.False
print(any((0,False,''))

#Null list. false
print(any([]))

#empty tuple.
print(any(()))

#empty set empty dictionary.
print(any({}))

output

True
True
True
False
True
True
True
False
False
False
False

Derivation: Use python to determine if a string contains elements from a list. (The elements of the list are also strings, of course.)

place = ['Buenos Aires','Monte Video','Brasilia']
str = "I want to go Monte Video"

if any(element in str for element in place): #member operator and derivative
    print("string contains Monte Video"

output

string contains Monte Video

This is where the any() function is learned.

any() in Python interactive shell

You can use any() from the shell. This works on some data types, but not on all as the example below demonstrates.

>>> any([0])
False
>>> any([0,1,2])
True
>>> any([0,1,2,''])
True
>>> any([0,''])
False
>>> any((0))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable
>>> any((0,))
False
>>> any((0,12))
True
>>> any((0,12,''))
True
>>> any((0,''))
False
>>> any({})
False
>>> any({'a':1})
True
>>> any({''})
False
>>> any({0})
False
>>>