iterable_py2.py

def iterable_nonstring(x):
    """Determines whether an object is iterable and not a string or unicode.

    This is incorrect for python 3.
    """
    return hasattr(x, '__iter__')


def iterable(x):
    """Determines whether an object can be iterated over.

    The `or` is unneccesary for python 3.
    """
    return iterable_nonstring(x) or isinstance(x, basestring)