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

In [1]: a = [1,2,3]

In [2]: all(type(item)==int for item in a)
Out[2]: True