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Any & All in Python

Any and All are two built ins provided in python used for successive And/Or.

Any

Returns true if any of the items is True. It returns False if empty or all are false. Any can be thought of as a sequence of OR operations on the provided iterables.
It short circuit the execution i.e. stop the execution as soon as the result is known.

Syntax : any(list of iterables)



# Since all are false, false is returned
print (any([False, False, False, False]))
  
# Here the method will short-circuit at the
# second item (True) and will return True.
print (any([False, True, False, False]))
  
# Here the method will short-circuit at the
# first (True) and will return True.
print (any([True, False, False, False]))

Output :

False
True
True

 

All

Returns true if all of the items are True (or if the iterable is empty). All can be thought of as a sequence of AND operations on the provided iterables. It also short circuit the execution i.e. stop the execution as soon as the result is known.

Syntax : all(list of iterables)

# Here all the iterables are True so all
# will return True and the same will be printed
print (all([True, True, True, True]))
  
# Here the method will short-circuit at the 
# first item (False) and will return False.
print (all([False, True, True, False]))
  
# This statement will return False, as no
# True is found in the iterables
print (all([False, False, False]))

Output :

True
False
False

Truth table :-

Please write comments if you find anything incorrect, or you want to share more information about the topic discussed above.



This article is attributed to GeeksforGeeks.org

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