Not a kata issue, it's a problem with your code. It's (your function returned this and) should equal (the expected value). ['b'] is not the input value.

Im getting this issue as well

still the same issue - works in every other interpreter but not in codeware

My solution is failing after submit with the following message:

['b'] should equal []

The code in my local interpreter is returning [] for an input of ['b'].

When running tests on codewars the following passes:

test.assert_equals(filter_list(['b']),[])

Does anyone know what is going on here?