Python all()
Check if all items in a list are True:
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
all(iterable)
Parameter Values
| Parameter | Description |
|---|---|
| iterable | An iterable object (list, tuple, dictionary) |
Example
Check if all items in a list are True:
mylist = [0, 1, 1]
x = all(mylist)
False
Example
Check if all items in a tuple are True:
mytuple = (0, True, False)
x = all(mytuple)
False
Example
Check if all items in a set are True:
myset = {0, 1, 0}
x = all(myset)
False
Example
Check if all items in a dictionary are True:
mydict = {0 : "Apple", 1 : "Orange"}
x = all(mydict)
FalseNote: When used on a dictionary, the all() function checks if all the keys are true, not the values.
