[Python-Dev] Trying to build from source, test-poplib fails (original) (raw)

Skip Montanaro skip.montanaro at gmail.com
Sat Apr 7 18:31:47 EDT 2018

It's been a long while since I rebuilt Python from the Git source. I tried for the first time the other day. Everything passed except test_poplib and test_asyncio. The former just runs and runs and runs. Here's the first traceback I encounter when executing ./python Lib/test/test_poplib.py:

test_stls_context (main.TestPOP3Class) ... Exception in thread Thread-16: Traceback (most recent call last): File "/home/skip/src/python/cpython/Lib/threading.py", line 917, in _bootstrap_inner self.run() File "Lib/test/test_poplib.py", line 227, in run asyncore.loop(timeout=0.1, count=1) File "/home/skip/src/python/cpython/Lib/asyncore.py", line 207, in loop poll_fun(timeout, map) File "/home/skip/src/python/cpython/Lib/asyncore.py", line 150, in poll read(obj) File "/home/skip/src/python/cpython/Lib/asyncore.py", line 87, in read obj.handle_error() File "/home/skip/src/python/cpython/Lib/asyncore.py", line 83, in read obj.handle_read_event() File "/home/skip/src/python/cpython/Lib/asyncore.py", line 422, in handle_read_event self.handle_read() File "Lib/test/test_poplib.py", line 194, in handle_read self._do_tls_handshake() File "Lib/test/test_poplib.py", line 174, in _do_tls_handshake self.socket.do_handshake() File "/home/skip/src/python/cpython/Lib/ssl.py", line 1108, in do_handshake self._sslobj.do_handshake() ssl.SSLError: [SSL: SSLV3_ALERT_CERTIFICATE_UNKNOWN] sslv3 alert certificate unknown (_ssl.c:1049)

I thought perhaps I was missing something, but _ssl built just fine. I believe I have a recent enough version of libssl (1.0.2g), and I'm on a pretty vanilla system (up-to-date Ubuntu 17.10). SSL-wise:

% apt search ssl | grep installed | egrep '^lib' | egrep ssl

libgnutls-openssl27/artful,now 3.5.8-6ubuntu3 amd64 [installed] libio-socket-ssl-perl/artful,artful,now 2.050-1 all [installed] libnet-smtp-ssl-perl/artful,artful,now 1.04-1 all [installed] libnet-ssleay-perl/artful,now 1.80-1build1 amd64 [installed] libssl-dev/artful-updates,artful-security,now 1.0.2g-1ubuntu13.4 amd64 [installed] libssl-doc/artful-updates,artful-updates,artful-security,artful-security,now 1.0.2g-1ubuntu13.4 all [installed,automatic] libssl1.0.0/artful-updates,artful-security,now 1.0.2g-1ubuntu13.4 amd64 [installed]

Any clues about what I might be missing from my setup would be appreciated.

Not sure what was wrong with test_asyncio. I ran it in isolation and it passed.

Thx,

Skip

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