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Moving to newer Python versions

2009-10-24: We were successful in getting Launchpad to work under 2.5 + Zope Toolkit. Python 2.6 support will be postponed until the Lucid timeframe.

The ultimate goal is to migrate Launchpad to Python 2.6.

Relevant tagged bugs: https://bugs.launchpad.net/launchpad-foundations/+bugs?field.tag=python-upgrade

Branches

• https://code.launchpad.net/~launchpad-dev/launchpad/python-migration2.6 is the incomplete work done on Python 2.6 compatibility.

Review process

You should submit merge proposals into the branch. gary, salgado, and barry will review all branches and we'll use a lightweight review process to manage this (simple cover letters, 5-minute reviews). Once approved, you can land your change by just merging it into a pristine local copy of the destination and pushing it; there is no pqm gateway.

Merge flow

devel -> python-migration2.6.

Overview of content of the python-migration2.6 branch

I suspect we may decide to bin the python-migration2.6 branch, as much of its present content is either trivial shebang munging, or already cherrypicked into devel, or fixes which can be opportunistically landed on devel whilst it is still targetting 2.5. Therefore I'm making a checklist of the content of the branch:

• shebang updates / Makefile PYTHON_VERSION updates all over the place

• versions.cfg changes:

  lazr.restful = 0.9.14
  lazr.smtptest = 1.2
  zope.app.component = 3.5.0
  zope.app.form = 3.6.4
  zope.app.publisher = 3.6.2

• Make import_fascist compatible with Python 2.6. (landable for 2.5)
• Use hashlib. (landable for 2.5)
• Additional clean_modules (but we don't do that any more on devel).
• Deprecation warning suppression.
• assert parentheses misuse (landable for 2.5)

Known/Open issues

Setup caveat

• The extension modules in your sourcecode directory will have been built for Python 2.5 and these will break for your 2.6 branch. The simple thing to do is to move your old sourcecode aside and run utilities/rocketfuel-get to get it again with Python 2.6. A more complex but useful thing to do to manage sourcecode directories for multiple python versions is:

  cd ~/launchpad/lp-sourcedeps
  mkdir 2.6
  cd 2.6
  ln -s ../download-cache
  ln -s ../eggs
  mkdir sourcecode
  cd sourcecode
  for i in ../../sourcecode/*; do bzr checkout --lightweight "$i"; done

  and now point utilities/link-external-sourcecode to ../../lp-sourcedeps/2.6 - if you do that you'll need to be aware that rocketfuel-get won't know about it, and your extra directories will require occasional manual updating.

Bustimications

• The pytz source package has a not-so-mysterious problem, hence we have eggs in download-cache.

Cleanup potential

• Is there any reason we need ipython-0.9.1-py2.5.egg in egg, not tarball, form?
  • Presumably we could bin the wadllib 0.1 eggs too.

• Eventually we should get rid of all the scripts hardcoded /usr/bin/pythonX.Y and use buildout's shebang munging.

• scripts/branch-rewrite.py uses /usr/bin/pythonX.Y -u. We should figure out if this is significant and why this script has to be different from other scripts.

• scripts/ftpmaster-tools/_syncorigins.py uses /usr/bin/env pythonX.Y... why?!

• cronscripts/mirror-prober.sh and cronscripts/nightly.sh are invoking python scripts with explicit interpreters. Why are they not using the shebangs? This leads to versions being defined in two places.

Situation

A multitude of modules of modules (sha, md5, sets, ...) are deprecated in Python 2.6, and many tests will fail merely because of unexpected DeprecationWarnings (but see below).

Getting started

• Apply this patch and re-run bin/buildout to temporarily suppress the turning of warnings into errors. There are DeprecationErrors coming from Twisted that we can't seem to turn off any other way.

• sudo apt-get install python-pyasn1 (for lp:twisted)

Test failures

• Running canonical.testing.layers.BaseLayer tests:

  • test_import (lp.codehosting.codeimport.tests.test_worker.TestGitImport)

    Error in test test_import (lp.codehosting.codeimport.tests.test_worker.TestGitImport)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/tests/__init__.py", line 1470, in run
        testMethod()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_worker.py", line 641, in test_import
        worker.run()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 398, in run
        self._doImport()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 495, in _doImport
        self.pushBazaarWorkingTree(bazaar_tree)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 525, in pushBazaarWorkingTree
        'git.db', bazaar_tree.branch.repository._transport)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 254, in put
        local_file = source_transport.get(filename)
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/transport/local.py", line 167, in get
        self._translate_error(e, path)
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/transport/__init__.py", line 306, in _translate_error
        raise errors.NoSuchFile(path, extra=e)
    NoSuchFile: No such file: u'/var/tmp/codeimport/data/worker-for-branch-1/bzr_working_tree/.bzr/repository/git.db': [Errno 2] No such file or directory: u'/var/tmp/codeimport/data/worker-for-branch-1/bzr_working_tree/.bzr/repository/git.db'

  • test_import_script (lp.codehosting.codeimport.tests.test_worker.TestGitImport)

    Failure in test test_import_script (lp.codehosting.codeimport.tests.test_worker.TestGitImport)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/tests/__init__.py", line 1470, in run
        testMethod()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_worker.py", line 688, in test_import_script
        self.assertEqual(retcode, 0)
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/tests/__init__.py", line 958, in assertEqual
        pformat(a), pformat(b)))
    AssertionError: not equal:
    a = 1
    b = 0

  • test_sync (lp.codehosting.codeimport.tests.test_worker.TestGitImport)

    Error in test test_sync (lp.codehosting.codeimport.tests.test_worker.TestGitImport)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/tests/__init__.py", line 1470, in run
        testMethod()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_worker.py", line 649, in test_sync
        worker.run()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 398, in run
        self._doImport()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 495, in _doImport
        self.pushBazaarWorkingTree(bazaar_tree)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 525, in pushBazaarWorkingTree
        'git.db', bazaar_tree.branch.repository._transport)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/worker.py", line 254, in put
        local_file = source_transport.get(filename)
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/transport/local.py", line 167, in get
        self._translate_error(e, path)
      File "/home/barry/projects/launchpad/eggs/bzr-2.0.0_lp_1-py2.6-linux-x86_64.egg/bzrlib/transport/__init__.py", line 306, in _translate_error
        raise errors.NoSuchFile(path, extra=e)
    NoSuchFile: No such file: u'/var/tmp/codeimport/data/worker-for-branch-1/bzr_working_tree/.bzr/repository/git.db': [Errno 2] No such file or directory: u'/var/tmp/codeimport/data/worker-for-branch-1/bzr_working_tree/.bzr/repository/git.db'

• Running canonical.testing.layers.LaunchpadScriptLayer tests:

  • test_initZopelessTwice (canonical.lp.ftests.test_zopeless.TestInitZopeless)

    Error in test test_initZopelessTwice (canonical.lp.ftests.test_zopeless.TestInitZopeless)
    Traceback (most recent call last):
      File "/usr/lib/python2.6/unittest.py", line 279, in run
        testMethod()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/lp/ftests/test_zopeless.py", line 45, in test_initZopelessTwice
        dbuser='launchpad')
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/lp/__init__.py", line 84, in initZopeless
        dbname=dbname, dbhost=dbhost, dbuser=dbuser, isolation=isolation)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/database/sqlbase.py", line 328, in initZopeless
        warnings.warn(alreadyInstalledMsg, stacklevel=3)
    UserWarning: A ZopelessTransactionManager with these settings is already installed.  This is probably caused by calling initZopeless twice.

• Running canonical.testing.layers.LaunchpadZopelessLayer tests:

  • lib/lp/soyuz/tests/../doc/buildd-slave.txt

    Failure in test lib/lp/soyuz/tests/../doc/buildd-slave.txt
    Failed doctest test for buildd-slave.txt
      File "lib/lp/soyuz/tests/../doc/buildd-slave.txt", line 0
    
    ----------------------------------------------------------------------
    File "lib/lp/soyuz/tests/../doc/buildd-slave.txt", line 102, in buildd-slave.txt
    Failed example:
        s.info()
    Differences (ndiff with -expected +actual):
          Traceback (most recent call last):
        - ...
        +   File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/doctest.py", line 1361, in __run
        +     compileflags, 1) in test.globs
        +   File "<doctest buildd-slave.txt[line 102, example 38]>", line 1, in <module>
        +   File "/usr/lib/python2.6/xmlrpclib.py", line 1199, in __call__
        +     return self.__send(self.__name, args)
        +   File "/usr/lib/python2.6/xmlrpclib.py", line 1489, in __request
        +     verbose=self.__verbose
        +   File "/usr/lib/python2.6/xmlrpclib.py", line 1235, in request
        +     self.send_content(h, request_body)
        +   File "/usr/lib/python2.6/xmlrpclib.py", line 1349, in send_content
        +     connection.endheaders()
        +   File "/usr/lib/python2.6/httplib.py", line 892, in endheaders
        +     self._send_output()
        +   File "/usr/lib/python2.6/httplib.py", line 764, in _send_output
        +     self.send(msg)
        +   File "/usr/lib/python2.6/httplib.py", line 723, in send
        +     self.connect()
        +   File "/usr/lib/python2.6/httplib.py", line 704, in connect
        +     self.timeout)
        +   File "/usr/lib/python2.6/socket.py", line 514, in create_connection
        +     raise error, msg
        - error: (111, 'Connection refused')
        ?        ^   ^^^                  --
        + error: [Errno 111] Connection refused
        ?        ^^^^^^^   ^^

  • lib/lp/soyuz/tests/../doc/manage-chroot.txt

    Failure in test lib/lp/soyuz/tests/../doc/manage-chroot.txt
    Failed doctest test for manage-chroot.txt
      File "lib/lp/soyuz/tests/../doc/manage-chroot.txt", line 0
    
    ----------------------------------------------------------------------
    File "lib/lp/soyuz/tests/../doc/manage-chroot.txt", line 189, in manage-chroot.txt
    Failed example:
        try:
             manage_chroot.mainTask()
        except SoyuzScriptError, info:
            print info
        else:
            print "Did not get expected exception"
    Differences (ndiff with -expected +actual):
        - DEBUG   Initialising ChrootManager for 'The Hoary Hedgehog Release for i386 (x86)'
        ?      --
        + DEBUG Initialising ChrootManager for 'The Hoary Hedgehog Release for i386 (x86)'
        - Librarian upload failed: [...]: (111, 'Connection refused')
        ?                           ^^^   ^   ^^^                  --
        + Librarian upload failed: [localhost:57930]: [Errno 111] Connection refused
        ?                           ^^^^^^^^^^^^^^^   ^^^^^^^   ^^

  • lib/canonical/launchpad/ftests/../doc/incomingmail.txt

    Failure in test lib/canonical/launchpad/ftests/../doc/incomingmail.txt
    Failed doctest test for incomingmail.txt
      File "lib/canonical/launchpad/ftests/../doc/incomingmail.txt", line 0
    
    ----------------------------------------------------------------------
    File "lib/canonical/launchpad/ftests/../doc/incomingmail.txt", line 377, in incomingmail.txt
    Failed example:
        handleMail(transaction)
    Differences (ndiff with -expected +actual):
        - ERROR:...:Upload to Librarian failed...
        ?       ^^^                           ---
        + ERROR:process-mail:Upload to Librarian failed
        ?       ^^^^^^^^^^^^
        - ...
        - UploadFailed: [...]: (111, 'Connection refused')
        + Traceback (most recent call last):
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/mail/incoming.py", line 202, in handleMail
        +     cStringIO(raw_mail), 'message/rfc822')
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/database/librarian.py", line 210, in create
        +     fid = client.addFile(name, size, file, contentType, expires, debugID)
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/librarian/client.py", line 104, in addFile
        +     self._connect()
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/librarian/client.py", line 56, in _connect
        +     '[%s:%s]: %s' % (self.upload_host, self.upload_port, x))
        + UploadFailed: [localhost:57930]: [Errno 111] Connection refused
        + ERROR:process-mail:Upload to Librarian failed
        + Traceback (most recent call last):
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/mail/incoming.py", line 202, in handleMail
        +     cStringIO(raw_mail), 'message/rfc822')
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/database/librarian.py", line 210, in create
        +     fid = client.addFile(name, size, file, contentType, expires, debugID)
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/librarian/client.py", line 104, in addFile
        +     self._connect()
        +   File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/librarian/client.py", line 56, in _connect
        +     '[%s:%s]: %s' % (self.upload_host, self.upload_port, x))
        + UploadFailed: [localhost:57930]: [Errno 111] Connection refused

• Running canonical.testing.layers.LaunchpadFunctionalLayer tests:

  • Set up canonical.testing.layers.GoogleServiceLayer

    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 364, in run_layer
        setup_layer(options, layer, setup_layers)
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 624, in setup_layer
        setup_layer(options, base, setup_layers)
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 629, in setup_layer
        layer.setUp()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/testing/layers.py", line 1009, in setUp
        google.setUp()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/testing/tests/googleserviceharness.py", line 76, in setUp
        self.startService()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/testing/tests/googleserviceharness.py", line 88, in startService
        googletestservice.wait_for_service()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/launchpad/testing/googletestservice.py", line 126, in wait_for_service
        sock.connect((host, port))
      File "<string>", line 1, in connect
    error: [Errno 103] Software caused connection abort

• Running canonical.testing.layers.AppServerLayer tests:

  • Same layer failure as above

• Running canonical.testing.layers.DatabaseFunctionalLayer tests:

  • lib/canonical/shipit/tests/../doc/shipit-process-requests.txt

    Failure in test lib/canonical/shipit/tests/../doc/shipit-process-requests.txt
    Failed doctest test for shipit-process-requests.txt
      File "lib/canonical/shipit/tests/../doc/shipit-process-requests.txt", line 0
    
    ----------------------------------------------------------------------
    File "lib/canonical/shipit/tests/../doc/shipit-process-requests.txt", line 96, in shipit-process-requests.txt
    Failed example:
        out, err
    Differences (ndiff with -expected +actual):
        - ('', '')
        + ('', '/home/barry/projects/launchpad/python-migration2.6/lib/cscvs/dircompare/dirsums.py:18: DeprecationWarning: the md5 module is deprecated; use hashlib instead\n  import md5\n/home/barry/projects/launchpad/python-migration2.6/lib/canonical/uuid.py:10: DeprecationWarning: the sha module is deprecated; use the hashlib module instead\n  import time, random, subprocess, thread, sha\n')

  • canonical.signon.browser.tests.test_openidserver.OpenIDMixin_checkTeamMembership_TestCase.test_full_fledged_account

    Error in test canonical.signon.browser.tests.test_openidserver.OpenIDMixin_checkTeamMembership_TestCase.test_full_fledged_account
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/testing/__init__.py", line 390, in run
        self.setUp()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/signon/browser/tests/test_openidserver.py", line 268, in setUp
        self.openid_mixin = CheckTeamMembershipTest(None, self.request)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/signon/browser/openidserver.py", line 101, in __init__
        super(OpenIDMixin, self).__init__(context, request)
    TypeError: object.__init__() takes no parameters

  • canonical.signon.browser.tests.test_openidserver.OpenIDMixin_checkTeamMembership_TestCase.test_personless_account

    Error in test canonical.signon.browser.tests.test_openidserver.OpenIDMixin_checkTeamMembership_TestCase.test_personless_account
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/testing/__init__.py", line 390, in run
        self.setUp()
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/signon/browser/tests/test_openidserver.py", line 268, in setUp
        self.openid_mixin = CheckTeamMembershipTest(None, self.request)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/canonical/signon/browser/openidserver.py", line 101, in __init__
        super(OpenIDMixin, self).__init__(context, request)
    TypeError: object.__init__() takes no parameters

  • lots more of those

  • lib/canonical/signon/browser/tests/loginservice-unauthorized-view.txt

    Failure in test lib/canonical/signon/browser/tests/loginservice-unauthorized-view.txt
    Failed doctest test for loginservice-unauthorized-view.txt
      File "lib/canonical/signon/browser/tests/loginservice-unauthorized-view.txt", line 0
    
    ----------------------------------------------------------------------
    File "lib/canonical/signon/browser/tests/loginservice-unauthorized-view.txt", line 39, in loginservice-unauthorized-view.txt
    Failed example:
        browser.open('http://openid.launchpad.dev/+edit')
    Differences (ndiff with -expected +actual):
        - ERROR:...

• Running canonical.testing.layers.PageTestLayer tests:

  • Google service layer failure again

• Running canonical.testing.layers.TwistedLayer tests:

  • test_run_proces_with_timeout_success (canonical.twistedsupport.tests.test_processmonitor.TestRunProcessWithTimeout)

    Error in test test_run_proces_with_timeout_success (canonical.twistedsupport.tests.test_processmonitor.TestRunProcessWithTimeout)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

  • more of the same

• Running canonical.testing.layers.TwistedLaunchpadZopelessLayer tests:

  • test_import_git (lp.codehosting.codeimport.tests.test_workermonitor.TestWorkerMonitorIntegration)

    Failure in test test_import_git (lp.codehosting.codeimport.tests.test_workermonitor.TestWorkerMonitorIntegration)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/internet/defer.py", line 323, in _runCallbacks
        self.result = callback(self.result, *args, **kw)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/workermonitor.py", line 124, in transacted
        return function(*args, **kwargs)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_workermonitor.py", line 531, in assertImported
        self.assertCodeImportResultCreated(code_import)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_workermonitor.py", line 513, in assertCodeImportResultCreated
        self.assertEqual(result.status, CodeImportResultStatus.SUCCESS)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 290, in failUnlessEqual
        % (msg, pformat(first), pformat(second)))
    FailTest: not equal:
    a = <DBItem CodeImportResultStatus.FAILURE, (200) Failure>
    b = <DBItem CodeImportResultStatus.SUCCESS, (100) Success>

  • test_import_git (lp.codehosting.codeimport.tests.test_workermonitor.TestWorkerMonitorIntegrationScript)

    Failure in test test_import_git (lp.codehosting.codeimport.tests.test_workermonitor.TestWorkerMonitorIntegrationScript)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/internet/defer.py", line 323, in _runCallbacks
        self.result = callback(self.result, *args, **kw)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/workermonitor.py", line 124, in transacted
        return function(*args, **kwargs)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_workermonitor.py", line 531, in assertImported
        self.assertCodeImportResultCreated(code_import)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/lp/codehosting/codeimport/tests/test_workermonitor.py", line 513, in assertCodeImportResultCreated
        self.assertEqual(result.status, CodeImportResultStatus.SUCCESS)
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 290, in failUnlessEqual
        % (msg, pformat(first), pformat(second)))
    FailTest: not equal:
    a = <DBItem CodeImportResultStatus.FAILURE, (200) Failure>
    b = <DBItem CodeImportResultStatus.SUCCESS, (100) Success>
    
    Error in test test_import_git (lp.codehosting.codeimport.tests.test_workermonitor.TestWorkerMonitorIntegrationScript)
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

• Running canonical.testing.layers.TwistedAppServerLayer tests:

  • lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_lock_with_magic_id

    /home/barry/projects/launchpad/python-migration2.6/lib/cscvs/dircompare/dirsums.py:18: DeprecationWarning: the md5 module is deprecated; use hashlib instead
      import md5
    
    
    
    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_lock_with_magic_id
    Traceback (most recent call last):
    UnexpectedStderr: Unexpected standard error from subprocess:   import md5
    
    
    
    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_lock_with_magic_id
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

  • lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror

    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.
    
    
     lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror_with_destination_locked_by_another/home/barry/projects/launchpad/python-migration2.6/lib/cscvs/dircompare/dirsums.py:18: DeprecationWarning: the md5 module is deprecated; use hashlib instead
      import md5
    
    
    
    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror_with_destination_locked_by_another
    Traceback (most recent call last):
    UnexpectedStderr: Unexpected standard error from subprocess:   import md5
    
    
    
    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror_with_destination_locked_by_another
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

  • lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror_with_destination_self_locked

    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_mirror_with_destination_self_locked
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

  • lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_stderrLoggedToOOPS

    Error in test lp.codehosting.puller.tests.test_scheduler.TestPullerMasterIntegration.test_stderrLoggedToOOPS
    Traceback (most recent call last):
      File "/home/barry/projects/launchpad/python-migration2.6/lib/twisted/trial/unittest.py", line 1250, in run
        warnings.warn_explicit(**w)
    PotentialZombieWarning: spawnProcess called, but the SIGCHLD handler is not installed. This probably means you have not yet called reactor.run, or called reactor.run(installSignalHandler=0). You will probably never see this process finish, and it may become a zombie process.

• Running canonical.testing.layers.ZopelessAppServerLayer tests:

  • lp.codehosting.puller.tests.test_acceptance.TestBranchPuller.test_mirror_hosted_loom_branch

      C-c C-cTraceback (most recent call last):
      File "bin/test", line 246, in <module>
        result = testrunner.run([])
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/__init__.py", line 32, in run
        failed = run_internal(defaults, args, script_parts=script_parts)
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/__init__.py", line 45, in run_internal
        runner.run()
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 136, in run
        self.run_tests()
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 235, in run_tests
        layers_to_run, self.failures, self.errors)
      File "/home/barry/projects/launchpad/eggs/zope.testing-3.8.1-py2.6.egg/zope/testing/testrunner/runner.py", line 584, in resume_tests
        time.sleep(0.01) # Keep the loop from being too tight.
    KeyboardInterrupt