test failure in ubuntu package daily build

[juliantaylor]

since commit 14dcd99 the daily build has a persistent test failure on oneiric and precise with python 2.6 and python 2.7

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ERROR: IPython.embed_kernel() is basically functional
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Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/build/buildd/ipython-0.12.1+dfsg+2444/IPython/zmq/tests/test_embed_kernel.py", line 103, in test_embed_kernel_basic
    with setup_kernel(cmd) as km:
  File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
    return self.gen.next()
  File "/build/buildd/ipython-0.12.1+dfsg+2444/IPython/zmq/tests/test_embed_kernel.py", line 77, in setup_kernel
    raise IOError("Connection file %r never arrived" % connection_file)
IOError: Connection file '/tmp/tmpoHfrKP/profile_default/security/kernel-18570.json' never arrived

======================================================================
ERROR: IPython.embed_kernel() inherits calling namespace
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Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/build/buildd/ipython-0.12.1+dfsg+2444/IPython/zmq/tests/test_embed_kernel.py", line 136, in test_embed_kernel_namespace
    with setup_kernel(cmd) as km:
  File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
    return self.gen.next()
  File "/build/buildd/ipython-0.12.1+dfsg+2444/IPython/zmq/tests/test_embed_kernel.py", line 77, in setup_kernel
    raise IOError("Connection file %r never arrived" % connection_file)
IOError: Connection file '/tmp/tmpoHfrKP/profile_default/security/kernel-18571.json' never arrived

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XML: /build/buildd/ipython-0.12.1+dfsg+2444/IPython.zmq.xunit.xml
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[minrk]

Just to clarify: this is the buildbot failing, and not a real error. Most obvious cause is the 5s timeout for kernel startup being too short for super-slow VMs. I'll do a PR with a longer timeout if that does indeed resolve the issue.

[juliantaylor]

something seems to have resolved this, it does not occur anymore in any of the builds