[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:997)

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[root@VM-0-4-centos tts]# python3 tts.py --input SSML.xml
EDAF7465E8A849E49A6CCC470278D035
Traceback (most recent call last):
  File "/data/tts/tts.py", line 119, in <module>
    asyncio.get_event_loop().run_until_complete(mainSeq(SSML_text, output_path))
  File "/usr/local/python3/lib/python3.10/asyncio/base_events.py", line 649, in run_until_complete
    return future.result()
  File "/data/tts/tts.py", line 109, in mainSeq
    await transferMsTTSData(SSML_text, outputPath)
  File "/data/tts/tts.py", line 57, in transferMsTTSData
    async with websockets.connect(endpoint2,extra_headers={
  File "/usr/local/python3/lib/python3.10/site-packages/websockets/legacy/client.py", line 633, in __aenter__
    return await self
  File "/usr/local/python3/lib/python3.10/site-packages/websockets/legacy/client.py", line 650, in __await_impl_timeout__
    return await asyncio.wait_for(self.__await_impl__(), self.open_timeout)
  File "/usr/local/python3/lib/python3.10/asyncio/tasks.py", line 445, in wait_for
    return fut.result()
  File "/usr/local/python3/lib/python3.10/site-packages/websockets/legacy/client.py", line 654, in __await_impl__
    transport, protocol = await self._create_connection()
  File "/usr/local/python3/lib/python3.10/asyncio/base_events.py", line 1103, in create_connection
    transport, protocol = await self._create_connection_transport(
  File "/usr/local/python3/lib/python3.10/asyncio/base_events.py", line 1133, in _create_connection_transport
    await waiter
  File "/usr/local/python3/lib/python3.10/asyncio/sslproto.py", line 534, in data_received
    ssldata, appdata = self._sslpipe.feed_ssldata(data)
  File "/usr/local/python3/lib/python3.10/asyncio/sslproto.py", line 188, in feed_ssldata
    self._sslobj.do_handshake()
  File "/usr/local/python3/lib/python3.10/ssl.py", line 975, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:997)

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自身python问题