How to test if every item in a list of type 'int'?

Question

Say I have a list of numbers. How would I do to check that every item in the list is an int?
I have searched around, but haven\'t been able to find anything on this.

Answer 1

Found myself with the same question but under a different situation: If the "integers" in your list are represented as strings (e.g., as was the case for me after using 'line.split()' on a line of integers and strings while reading in a text file), and you simply want to check if the elements of the list can be represented as integers, you can use:

all(i.isdigit() for i in myList)

For example:

>>> myList=['1', '2', '3', '150', '500', '6']
>>> all(i.isdigit() for i in myList)
True

>>> myList2=['1.5', '2', '3', '150', '500', '6']
>>> all(i.isdigit() for i in myList2)
False