Test if a variable is a list or tuple

Question

In python, what\'s the best way to test if a variable contains a list or a tuple? (ie. a collection)

Is isinstance() as evil as suggested here? http://w

Answer 1

Another easy way to find out if a variable is either list or tuple or generally check variable type would be :

    def islist(obj):

        if ("list" in str(type(obj)) ): return True

        else : return False