[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Change by STINNER Victor :


--
resolution:  -> fixed
stage: backport needed -> resolved
status: open -> closed

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor  added the comment:

Recent failure:

http://buildbot.python.org/all/builders/x86%20Gentoo%20Non-Debug%20with%20X%203.x/builds/1080/steps/test/logs/stdio

==
ERROR: test_with_statement (test.test_nntplib.NetworkedNNTP_SSLTests)
--
Traceback (most recent call last):
  File 
"/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_nntplib.py",
 line 241, in wrapped
meth(self)
  File 
"/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/test/test_nntplib.py",
 line 263, in test_with_statement
with self.NNTP_CLASS(self.NNTP_HOST, timeout=TIMEOUT, usenetrc=False) as 
server:
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/nntplib.py", 
line 1077, in __init__
self.sock = _encrypt_on(self.sock, ssl_context, host)
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/nntplib.py", 
line 292, in _encrypt_on
return context.wrap_socket(sock, server_hostname=hostname)
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", 
line 411, in wrap_socket
_session=session
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", 
line 822, in __init__
self.do_handshake()
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", 
line 1076, in do_handshake
self._sslobj.do_handshake()
  File "/buildbot/buildarea/3.x.ware-gentoo-x86.nondebug/build/Lib/ssl.py", 
line 697, in do_handshake
self._sslobj.do_handshake()
ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:864)

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

The SSL EOF error is still common, but in the test, not in setUpClass(). 
Example:

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%2010.x%20Shared%203.x/builds/874/steps/test/logs/stdio

==
ERROR: test_with_statement (test.test_nntplib.NetworkedNNTP_SSLTests)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/test/test_nntplib.py", 
line 241, in wrapped
meth(self)
  File 
"/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/test/test_nntplib.py", 
line 263, in test_with_statement
with self.NNTP_CLASS(self.NNTP_HOST, timeout=TIMEOUT, usenetrc=False) as 
server:
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/nntplib.py", 
line 1077, in __init__
self.sock = _encrypt_on(self.sock, ssl_context, host)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/nntplib.py", 
line 292, in _encrypt_on
return context.wrap_socket(sock, server_hostname=hostname)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/ssl.py", line 
407, in wrap_socket
_context=self, _session=session)
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/ssl.py", line 
814, in __init__
self.do_handshake()
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/ssl.py", line 
1068, in do_handshake
self._sslobj.do_handshake()
  File "/usr/home/buildbot/python/3.x.koobs-freebsd10/build/Lib/ssl.py", line 
689, in do_handshake
self._sslobj.do_handshake()
ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:864)

pythininfo:

ssl.HAS_SNI: True
ssl.OPENSSL_VERSION: OpenSSL 1.0.1u-freebsd  22 Sep 2016
ssl.OPENSSL_VERSION_INFO: (1, 0, 1, 21, 15)
ssl.OP_ALL: 0x83ff
ssl.OP_NO_TLSv1_1: 0x1000

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[issue30188] test_nntplib: random EOFError in setUpClass()

[Kubilay Kocak]

Kubilay Kocak added the comment:

Apologies I meant 5b4feb7e86 by haypo and 067931dd95d (also needs merge?)  by 
inada.naoki

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[issue30188] test_nntplib: random EOFError in setUpClass()

[Kubilay Kocak]

Kubilay Kocak added the comment:

bpo-30188 (and bpo-30188 ?) need merging to 3.6/3.5, 3.6 just failed with:

ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:748)

Full build log attached

--
nosy: +koobs
resolution: fixed -> 
stage: resolved -> backport needed
status: closed -> open
Added file: 
http://bugs.python.org/file47100/koobs-freebsd-current-debug.py36.build.419.log

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Changes by STINNER Victor :


--
resolution:  -> fixed
status: open -> closed

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[issue30188] test_nntplib: random EOFError in setUpClass()

[INADA Naoki]

INADA Naoki added the comment:


New changeset 067931dd95ddfa34297be9c602a796d9f8d9bea3 by INADA Naoki in branch 
'master':
bpo-30188: fix TypeError in test_nntplib (GH-2892)
https://github.com/python/cpython/commit/067931dd95ddfa34297be9c602a796d9f8d9bea3


--
nosy: +inada.naoki

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[issue30188] test_nntplib: random EOFError in setUpClass()

[INADA Naoki]

Changes by INADA Naoki :


--
pull_requests: +2944

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:


New changeset 5b4feb7e86ecb813b2c56560f86cda2fd46b9579 by Victor Stinner in 
branch 'master':
bpo-30188: test_nntplib catch also ssl.SSLEOFError (#2843)
https://github.com/python/cpython/commit/5b4feb7e86ecb813b2c56560f86cda2fd46b9579


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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Changes by STINNER Victor :


--
pull_requests: +2887

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

Similar but different error (ssl.SSLEOFError) on AMD64 FreeBSD CURRENT 
Non-Debug 3.5:

http://buildbot.python.org/all/builders/AMD64%20FreeBSD%20CURRENT%20Non-Debug%203.5/builds/211/steps/test/logs/stdio

==
ERROR: setUpClass (test.test_nntplib.NetworkedNNTP_SSLTests)
--
Traceback (most recent call last):
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/test/test_nntplib.py",
 line 291, in setUpClass
usenetrc=False)
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/nntplib.py",
 line 1077, in __init__
self.sock = _encrypt_on(self.sock, ssl_context, host)
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/nntplib.py",
 line 292, in _encrypt_on
return context.wrap_socket(sock, server_hostname=hostname)
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/ssl.py",
 line 385, in wrap_socket
_context=self)
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/ssl.py",
 line 760, in __init__
self.do_handshake()
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/ssl.py",
 line 996, in do_handshake
self._sslobj.do_handshake()
  File 
"/usr/home/buildbot/python/3.5.koobs-freebsd-current.nondebug/build/Lib/ssl.py",
 line 641, in do_handshake
self._sslobj.do_handshake()
ssl.SSLEOFError: EOF occurred in violation of protocol (_ssl.c:719)

--
resolution: fixed -> 
status: closed -> open

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

> Contact news.trigofacile.com administrator to ask him to repair the NNTP 
> server

I did that and I got a reply: the server is now fixed! :-D

The test is now skipped on server failure (in 3.5, 3.6 and master), and the 
server is repaired. So I close the issue.

Note: Python 2.7 doesn't have the unit test and so is not impacted.

--
resolution:  -> fixed
stage:  -> resolved
status: open -> closed
versions: +Python 3.5, Python 3.6

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:


New changeset 0eda2d43a7d5b262c979b944592999015a822395 by Victor Stinner in 
branch '3.5':
bpo-30175: Skip client cert tests of test_imaplib (#1320) (#1324)
https://github.com/python/cpython/commit/0eda2d43a7d5b262c979b944592999015a822395


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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:


New changeset 4dc3b9cf2a868a8378ecbc2221a15e7b59e8e944 by Victor Stinner in 
branch '3.6':
bpo-30175: Skip client cert tests of test_imaplib (#1320) (#1323)
https://github.com/python/cpython/commit/4dc3b9cf2a868a8378ecbc2221a15e7b59e8e944


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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Changes by STINNER Victor :


--
pull_requests: +1433

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

The news.trigofacile.com server was chosen in the commit 
1cb121eceae698b1be0b383de5d42dc9b9accd02 (Antoine Pitrou in 2010) which also 
added the new NetworkedNNTPTests test case.

--
nosy: +pitrou

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Changes by STINNER Victor :


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pull_requests: +1435

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

I see 3 options:

* Contact news.trigofacile.com administrator to ask him to repair the NNTP 
server
* Run a NNTP server on pythontest.net
* Mock the server: see http://bugs.python.org/issue19756#msg268841

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:

NetworkedNNTPTests uses the NNTP server news.trigofacile.com (port 119). It's 
possible to connect to this server (IPv4: 91.121.26.68), but recv() returns an 
empty string.

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

STINNER Victor added the comment:


New changeset 5bccca58b9b2b3a925b16750bedbd907695ea8d7 by Victor Stinner in 
branch 'master':
bpo-30175: Skip client cert tests of test_imaplib (#1320)
https://github.com/python/cpython/commit/5bccca58b9b2b3a925b16750bedbd907695ea8d7


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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

Changes by STINNER Victor :


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pull_requests: +1430

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[issue30188] test_nntplib: random EOFError in setUpClass()

[STINNER Victor]

New submission from STINNER Victor:

Example of failure:

==
ERROR: setUpClass (test.test_nntplib.NetworkedNNTPTests)
--
Traceback (most recent call last):
  File "/home/haypo/prog/python/master/Lib/test/test_nntplib.py", line 289, in 
setUpClass
cls.server = cls.NNTP_CLASS(cls.NNTP_HOST, timeout=TIMEOUT, usenetrc=False)
  File "/home/haypo/prog/python/master/Lib/nntplib.py", line 1048, in __init__
readermode, timeout)
  File "/home/haypo/prog/python/master/Lib/nntplib.py", line 330, in __init__
self.welcome = self._getresp()
  File "/home/haypo/prog/python/master/Lib/nntplib.py", line 449, in _getresp
resp = self._getline()
  File "/home/haypo/prog/python/master/Lib/nntplib.py", line 437, in _getline
if not line: raise EOFError
EOFError

--

Attached PR catch this error and skips the test.

See also issue #19613 and #19756.

--
components: Tests
messages: 292450
nosy: haypo
priority: normal
severity: normal
status: open
title: test_nntplib: random EOFError in setUpClass()
versions: Python 3.7

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