Python httplib2 模块，test() 实例源码

def test_ssl_hostname_mismatch_repeat(self):
        # https://github.com/httplib2/httplib2/issues/5

        # FIXME(temoto): as of 2017-01-05 this is only a reference code, not useful test.
        # Because it doesn't provoke described error on my machine.
        # Instead `SSLContext.wrap_socket` raises `ssl.CertificateError`
        # which was also added to original patch.

        # url host is intentionally different, we provoke ssl hostname mismatch error
        url = 'https://127.0.0.1:%d/' % (self.port,)
        http = httplib2.Http(ca_certs=self.ca_certs_path, proxy_info=None)

        def once():
            try:
                http.request(url)
                assert False, 'expected certificate hostname mismatch error'
            except Exception as e:
                print('%s errno=%s' % (repr(e), getattr(e, 'errno', None)))

        once()
        once()