def load_installed_version(self):
        installed_packages = get_installed_pypackages()
        if self.package in installed_packages:
            self.version = "=={}".format(
                installed_packages[self.package].version)
def test_should_encode_list(self):
        encoded = cypher_repr([1, 2.0, u"three"])
        assert encoded == u"[1, 2.0, 'three']"