Connection Error during new listing.

API Spot/Margin API
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1

Yesterday there was the new listing of DYM on Binance, and I tried to participate with my Python bot. I encountered this issue:

Traceback (most recent call last):
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connection.py", line 203, in _new_conn
    sock = connection.create_connection(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/util/connection.py", line 60, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/socket.py", line 962, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
socket.gaierror: [Errno -2] Name or service not known

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connectionpool.py", line 790, in urlopen
    response = self._make_request(
               ^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connectionpool.py", line 491, in _make_request
    raise new_e
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connectionpool.py", line 467, in _make_request
    self._validate_conn(conn)
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connectionpool.py", line 1096, in _validate_conn
    conn.connect()
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connection.py", line 611, in connect
    self.sock = sock = self._new_conn()
                       ^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connection.py", line 210, in _new_conn
    raise NameResolutionError(self.host, self, e) from e
urllib3.exceptions.NameResolutionError: <urllib3.connection.HTTPSConnection object at 0x7fef81796510>: Failed to resolve 'api.binance.com' ([Errno -2] Name or service not known)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/admin/env_python/lib/python3.11/site-packages/requests/adapters.py", line 486, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/connectionpool.py", line 844, in urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/urllib3/util/retry.py", line 515, in increment
    raise MaxRetryError(_pool, url, reason) from reason  # type: ignore[arg-type]
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='api.binance.com', port=443): Max retries exceeded with url: /api/v3/ping (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fef81796510>: Failed to resolve 'api.binance.com' ([Errno -2] Name or service not known)"))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/home/admin/my_bot/./bin_newlist_bot_v2.py", line 34, in <module>
    client = Client(api_key, api_secret)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/binance/client.py", line 344, in __init__
    self.ping()
  File "/home/admin/env_python/lib/python3.11/site-packages/binance/client.py", line 570, in ping
    return self._get('ping', version=self.PRIVATE_API_VERSION)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/binance/client.py", line 415, in _get
    return self._request_api('get', path, signed, version, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/binance/client.py", line 378, in _request_api
    return self._request(method, uri, signed, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/binance/client.py", line 358, in _request
    self.response = getattr(self.session, method)(uri, **kwargs)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/requests/sessions.py", line 602, in get
    return self.request("GET", url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/requests/sessions.py", line 589, in request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/requests/sessions.py", line 703, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/admin/env_python/lib/python3.11/site-packages/requests/adapters.py", line 519, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api.binance.com', port=443): Max retries exceeded with url: /api/v3/ping (Caused by NameResolutionError("<urllib3.connection.HTTPSConnection object at 0x7fef81796510>: Failed to resolve 'api.binance.com' ([Errno -2] Name or service not known)"))

This has never happened to me before. Does anyone have any idea what went wrong?

2

Hi, from the error, it seems there is an connection issue to the server. Please provide more details so we can have better understanding of the issue.

thank you

3

I wouldn’t know what other details to give you… My bot, when the countdown expires, sends a market order. If it receives an error, it retries to send another order. I have used it several times before, and I had never encountered this error.