Event stream: too many requests #31

Traceback (most recent call last):
  File "listener.py", line 33, in <module>
    for i, batch in enumerate(grouper(s.stream(fetch_from), 50)):
  File "/data/project/editgroups/www/python/src/store/stream.py", line 13, in stream
    for event in EventSource(url):
  File "/data/project/editgroups/listener_venv/lib/python3.5/site-packages/sseclient.py", line 98, in __next__
    self._connect()
  File "/data/project/editgroups/listener_venv/lib/python3.5/site-packages/sseclient.py", line 61, in _connect
    self.resp.raise_for_status()
  File "/data/project/editgroups/listener_venv/lib/python3.5/site-packages/requests/models.py", line 940, in raise_for_status
    raise HTTPError(http_error_msg, response=self)
requests.exceptions.HTTPError: 429 Client Error: Too Many Requests for url: https://stream.wikimedia.org/v2/stream/recentchange?since=2019-12-18T10:56:56Z
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