How To Check If All Elements In A List Are Whole Numbers

If I have a list such as : List = [12,6,3,5,1.2,5.5] Is there a way I can check if all the numbers are whole numbers? I tried something like def isWhole(d): if (d%1 == 0 ) : fo

Solution 1:

So you want integers and floats that are equal to integers?

def is_whole(d):
    """Whether or not d is a whole number."""
    return isinstance(d, int) or (isinstance(d, float) and d.is_integer())

In use:

>>> for test in (1, 1.0, 1.1, "1"):
    print(repr(test), is_whole(test))


1 True # integer 
1.0 True # float equal to integer
1.1 False # float not equal to integer
'1' False # neither integer nor float

You can then apply this to your list with all and map:

if all(map(is_whole, List)):

or a generator expression:

if all(is_whole(d) for d in List):

Solution 2:

Simple solution for a list L:

def isWhole(L):
    for i in L:
        if i%1 != 0:
            return False
    return True

Solution 3:

List = [12,6,3,5,1.2,5.5]

for i in List:

if i%1 != 0 :
    print(False)
    break