def clean_semver(cls, version_spec):
        return re.sub(r"([<>=~])\s+?v?", "\\1", version_spec, re.IGNORECASE)
def test_should_encode_bytes_with_escaped_chars(self):
        encoded = cypher_repr(b"hello, 'world'", quote=u"'")
        assert encoded == u"'hello, \\'world\\''"