python network_error ai_generated true

aiohttp.client_exceptions.ClientConnectorCertificateError: <url>

ID: python/aiohttp-client-connector-ssl

Also available as: JSON · Markdown · 中文
80%Fix Rate
83%Confidence
0Evidence
2024-06-12First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3.8 active — — —
3.9 active — — —
3.10 active — — —
3.11 active — — —
3.12 active — — —

Root Cause

SSL certificate verification failed for the target server, often due to self-signed certificates or expired CA chains.

generic

中文

目标服务器的 SSL 证书验证失败，通常是由于自签名证书或过期的 CA 链。

Workarounds

  1. 90% success Use a custom SSL context with verification 
    import ssl; ssl_ctx = ssl.create_default_context(); ssl_ctx.load_verify_locations('ca.pem')
connector = aiohttp.TCPConnector(ssl=ssl_ctx)
async with aiohttp.ClientSession(connector=connector) as session: ...
  2. 70% success Temporarily disable SSL verification for testing (not for production) 
    connector = aiohttp.TCPConnector(ssl=False)
async with aiohttp.ClientSession(connector=connector) as session: ...

Dead Ends

Common approaches that don't work:

  1. Disabling SSL verification entirely with connector=False 40% fail

    This reduces security and may cause warnings; not recommended for production.

  2. Ignoring the error and retrying without changes 90% fail

    The same error will recur because the certificate issue is not addressed.