How to use 'python requests post' in Python

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def post(self, data):
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    if len(self.sockets) > 0 and self.try_count > 0:
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        current_socket = self.sockets.pop(0)
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        proxies = {
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            'http': 'http://' + current_socket,
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            'https': 'https://' + current_socket
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        }
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        try:
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            request = requests.post(
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                self.url, json=data, timeout=3.0, proxies=proxies)
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            self.set_request_data(request, current_socket)
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        except Exception:
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            self.try_count -= 1
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            self.post(data)
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    else:
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        self.try_count_succeeded()

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def _do_post(post_url, api_name, request_body):
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  """Helper to do HTTP POST.
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  Note:
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  1) On success, Kubernetes returns a success code of 201(CREATED) not 200(OK)
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  2) A response code of 509(CONFLICT) is interpreted as a success code (since
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  the error is most likely due to the resource already existing). This makes
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  _do_post() idempotent which is semantically desirable.
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  """
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  is_success = True
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  try:
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    r = requests.post(post_url,
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                      data=request_body,
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                      timeout=_REQUEST_TIMEOUT_SECS)
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    if r.status_code == requests.codes.conflict:
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      print('WARN: Looks like the resource already exists. Api: %s, url: %s' %
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            (api_name, post_url))
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    elif r.status_code != requests.codes.created:
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      print('ERROR: %s API returned error. HTTP response: (%d) %s' %
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            (api_name, r.status_code, r.text))
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      is_success = False
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  except (requests.exceptions.Timeout,
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          requests.exceptions.ConnectionError) as e:
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    is_success = False
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    _print_connection_error(str(e))
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  return is_success