Actual behaviour
Despite being caught ssl error traceback still prints.
Expected behaviour
If an error is caught neither error nor traceback should be shown.
Long story short
As the title suggests, in some specific cases ssl prints error traceback when utilizing ClientSession().get(), despite explicit catch with try/except.
Steps to reproduce
Outputs:
SSL handshake failed on verifying the certificate
protocol: <asyncio.sslproto.SSLProtocol object at 0x10de81668>
transport: <_SelectorSocketTransport fd=9 read=polling write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/asyncio/sslproto.py", line 625, in _on_handshake_complete
raise handshake_exc
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/asyncio/sslproto.py", line 189, in feed_ssldata
self._sslobj.do_handshake()
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/ssl.py", line 763, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)
SSL error in data received
protocol: <asyncio.sslproto.SSLProtocol object at 0x10de81668>
transport: <_SelectorSocketTransport closing fd=9 read=idle write=<idle, bufsize=0>>
Traceback (most recent call last):
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/asyncio/sslproto.py", line 526, in data_received
ssldata, appdata = self._sslpipe.feed_ssldata(data)
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/asyncio/sslproto.py", line 189, in feed_ssldata
self._sslobj.do_handshake()
File "/Users/felipe/.pyenv/versions/3.7.2/lib/python3.7/ssl.py", line 763, in do_handshake
self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1056)
Error thrown!