python recursive fuzzy float comparison

python_recursive_fuzzy_float_comparison.py

def _is_close(a, b, rel_tol=1e-09, abs_tol=0.0):
    return abs(a-b) <= max(rel_tol * max(abs(a), abs(b)), abs_tol)


def _is_fuzzy_equal(expected, actual):

    if isinstance(expected, set):
        expected = list(expected)

    if isinstance(actual, set):
        actual = list(actual)

    if isinstance(actual, list) or isinstance(actual, tuple):
        for index, value in enumerate(actual):
            if not _is_fuzzy_equal(expected[index], actual[index]):
                return False
        return True

    if isinstance(actual, dict):
        for key, value in actual.iteritems():
            if not _is_fuzzy_equal(expected[key], actual[key]):
                return False
        return True

    if isinstance(expected, numbers.Number):
        return _is_close(float(expected), float(actual))

    return expected == actual