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Python all() Function

Example

Check if all items in a list are True:

mylist = [True, True, True]
x = all(mylist)

Try it Yourself » Definition and Usage

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 also returns True.

Syntax Parameter Values Parameter Description iterable An iterable object (list, tuple, dictionary) More Examples Example

Check if all items in a list are True:

mylist = [0, 1, 1]
x = all(mylist)

Check if all items in a tuple are True:

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

Check if all items in a set are True:

myset = {0, 1, 0}
x = all(myset)

Check if all items in a dictionary are True:

mydict = {0 : "Apple", 1 : "Orange"}
x = all(mydict)

Note: When used on a dictionary, the all() function checks if all the keys are true, not the values.

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