Check if list elements are integer - Python

In a python script, I have a list item and I want to confirm that all elements in that list are integer.

Below, you can find the line of code I have used to confirm the elements are integer in a list.

my_list = [1, 2, 3]
p = all(isinstance(item, int) for item in my_list)
print p
>>>True
my_list = [1, 2, 3.5]
p = all(isinstance(item, int) for item in my_list)
print p
>>>False

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