使用RF的RequestLibrary访问https的API时，test case执行完后控制台会打印如下告警：
D:venvpy3envLibsite-packagesurllib3connectionpool.py:1013: InsecureRequestWarning: Unverified HTTPS request is being made to host 'tsptest.winmu.net'. Adding certificate verification is strongly advised. See: https://urllib3.readthedocs.io/en/latest/advanced-usage.html#ssl-warnings warnings.warn(
虽然不影响功能，但是看起来不太舒服。网上搜索了一下解决方法，在Create Session的时候，带上verify=True参数即可：
Create Session session1 https://www.google.com verify=True
https://github.com/MarketSquare/robotframework-requests/issues/135
verify参数在create_session方法中默认为False，所以要指定为True:
@keyword("Create Session") def create_session(self, alias, url, headers={}, cookies={}, auth=None, timeout=None, proxies=None, verify=False, # 该参数默认为False debug=0, max_retries=3, backoff_factor=0.10, disable_warnings=0, retry_status_list=[], retry_method_list=DEFAULT_RETRY_METHOD_LIST): """ Create Session: create a HTTP session to a server ``alias`` Robot Framework alias to identify the session ``url`` Base url of the server ``headers`` Dictionary of default headers ``cookies`` Dictionary of cookies ``auth`` List of username & password for HTTP Basic Auth ``timeout`` Connection timeout ``proxies`` Dictionary that contains proxy urls for HTTP and HTTPS communication ``verify`` Whether the SSL cert will be verified. A CA_BUNDLE path can also be provided. ``debug`` Enable http verbosity option more information https://docs.python.org/2/library/httplib.html#httplib.HTTPConnection.set_debuglevel ``max_retries`` Number of maximum retries each connection should attempt. By default it will retry 3 times in case of connection errors only. A 0 value will disable any kind of retries regardless of other retry settings. In case the number of retries is reached a retry exception is raised. ``disable_warnings`` Disable requests warning useful when you have large number of testcases ``backoff_factor`` Introduces a delay time between retries that is longer after each retry. eg. if backoff_factor is set to 0.1 the sleep between attemps will be: 0.0, 0.2, 0.4 More info here: https://urllib3.readthedocs.io/en/latest/reference/urllib3.util.html ``retry_method_list`` List of uppercased HTTP method verbs where retries are allowed. By default retries are allowed only on HTTP requests methods that are considered to be idempotent (multiple requests with the same parameters end with the same state). eg. set to ['POST', 'GET'] to retry only those kind of requests. ``retry_status_list`` List of integer HTTP status codes that, if returned, a retry is attempted. eg. set to [502, 503] to retry requests if those status are returned. Note that max_retries must be greater than 0. """ auth = requests.auth.HTTPBasicAuth(*auth) if auth else None logger.info('Creating Session using : alias=%s, url=%s, headers=%s, cookies=%s, auth=%s, timeout=%s, proxies=%s, verify=%s, debug=%s ' % (alias, url, headers, cookies, auth, timeout, proxies, verify, debug)) return self._create_session( alias=alias, url=url, headers=headers, cookies=cookies, auth=auth, timeout=timeout, max_retries=max_retries, backoff_factor=backoff_factor, proxies=proxies, verify=verify, debug=debug, disable_warnings=disable_warnings, retry_status_list=retry_status_list, retry_method_list=retry_method_list)