[Python-buildbots] Internal buildbot error?

[Victor Stinner]

Hi,

What is the following failure? Can it be an internal buildbot bot?

http://buildbot.python.org/all/#/builders/69/builds/75

error in RunProcess._startCommand
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/buildslave/runprocess.py",
line 426, in start
self._startCommand()
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/buildslave/runprocess.py",
line 550, in _startCommand
usePTY=self.usePTY)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/buildslave/runprocess.py",
line 572, in _spawnProcess
processProtocol, uid, gid, childFDs)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/process.py",
line 747, in __init__
parentFD, forceReadHack=True)
File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/twisted/internet/process.py",
line 156, in __init__
if not stat.S_ISFIFO(os.fstat(self.fileno()).st_mode):
OSError: [Errno 9] Bad file descriptor

Traceback (most recent call last):
  File "/data/buildbot/venv/lib/python3.4/site-packages/twisted/internet/defer.py",
line 500, in errback
    self._startRunCallbacks(fail)
  File "/data/buildbot/venv/lib/python3.4/site-packages/twisted/internet/defer.py",
line 567, in _startRunCallbacks
    self._runCallbacks()
  File "/data/buildbot/venv/lib/python3.4/site-packages/twisted/internet/defer.py",
line 653, in _runCallbacks
    current.result = callback(current.result, *args, **kw)
  File "/data/buildbot/venv/lib/python3.4/site-packages/twisted/internet/defer.py",
line 1442, in gotResult
    _inlineCallbacks(r, g, deferred)
--- <exception caught here> ---
  File "/data/buildbot/venv/lib/python3.4/site-packages/twisted/internet/defer.py",
line 1386, in _inlineCallbacks
    result = g.send(result)
  File "/data/buildbot/venv/lib/python3.4/site-packages/buildbot/process/buildstep.py",
line 705, in run
    results = yield self._start_deferred
builtins.TypeError: Can't convert 'bytes' object to str implicitly

Victor