test_license_exists_at_url() of test_site fails on "x86 XP-4 3.4" buildbot

[vstinner]

BPO	23303
Nosy	@pitrou, @vstinner, @tiran, @ned-deily, @alex

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = <Date 2015-03-18.10:55:27.942>
created_at = <Date 2015-01-22.21:30:02.970>
labels = ['tests']
title = 'test_license_exists_at_url() of test_site fails on "x86 XP-4 3.4" buildbot'
updated_at = <Date 2015-03-18.10:55:27.940>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2015-03-18.10:55:27.940>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2015-03-18.10:55:27.942>
closer = 'vstinner'
components = ['Tests']
creation = <Date 2015-01-22.21:30:02.970>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 23303
keywords = ['buildbot']
message_count = 4.0
messages = ['234510', '234511', '234648', '238409']
nosy_count = 5.0
nosy_names = ['pitrou', 'vstinner', 'christian.heimes', 'ned.deily', 'alex']
pr_nums = []
priority = 'normal'
resolution = 'out of date'
stage = None
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue23303'
versions = ['Python 3.4']

[vstinner]

test_license_exists_at_url() of test_site fails on "x86 XP-4 3.4" buildbot. I don't understand why the test pass on "x86 XP-4 3.x", is it the same server?

http://buildbot.python.org/all/builders/x86%20XP-4%203.4/builds/747/steps/test/logs/stdio

======================================================================
ERROR: test_license_exists_at_url (test.test_site.ImportSideEffectTests)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 1182, in do_open
    h.request(req.get_method(), req.selector, req.data, headers)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 1088, in request
    self._send_request(method, url, body, headers)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 1126, in _send_request
    self.endheaders(body)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 1084, in endheaders
    self._send_output(message_body)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 922, in _send_output
    self.send(msg)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 857, in send
    self.connect()
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\http\client.py", line 1231, in connect
    server_hostname=server_hostname)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\ssl.py", line 365, in wrap_socket
    _context=self)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\ssl.py", line 583, in __init__
    self.do_handshake()
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\ssl.py", line 810, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\test\test_site.py", line 426, in test_license_exists_at_url
    with urllib.request.urlopen(req) as data:
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 161, in urlopen
    return opener.open(url, data, timeout)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 469, in open
    response = meth(req, response)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 579, in http_response
    'http', request, response, code, msg, hdrs)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 501, in error
    result = self._call_chain(*args)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 441, in _call_chain
    result = func(*args)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 684, in http_error_302
    return self.parent.open(new, timeout=req.timeout)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 463, in open
    response = self._open(req, data)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 481, in _open
    '_open', req)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 441, in _call_chain
    result = func(*args)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 1225, in https_open
    context=self._context, check_hostname=self._check_hostname)
  File "D:\cygwin\home\db3l\buildarea\3.4.bolen-windows\build\lib\urllib\request.py", line 1184, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:600)>

[vstinner]

The URL is http://www.python.org/psf/license/

wget tells me that the URL is directed to https://www.python.org/psf/license/ which is redirected to https://docs.python.org/license.html which is redirected to https://docs.python.org/2/license.html.

According to Firefox, docs.python.org uses a certificate signed by "DigiCert Inc" with the CN "www.python.org" (hum, it should not be "docs.python.org" ?).

Same failure on "x86 Windows7 3.4":
http://buildbot.python.org/all/builders/x86%20Windows7%203.4/builds/713/steps/test/logs/stdio

And "x86 Ubuntu Shared 3.4":
http://buildbot.python.org/all/builders/x86%20Ubuntu%20Shared%203.4/builds/795/steps/test/logs/stdio

[ned-deily]

Are the Windows 3.4 and 3.x builds on the buildbot using different versions of OpenSSL? Certificate verifies would fail with 0.9.7.

[vstinner]

Builder x86 XP-4 3.4 is green again. I close the issue.