Traceback (most recent call last):
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 54, in _runcatch
    return _dispatch(ui, args)
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 494, in _dispatch
    cmdpats, cmdoptions)
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 355, in runcommand
    ret = _runcommand(ui, options, cmd, d)
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 545, in _runcommand
    return checkargs()
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 499, in checkargs
    return cmdfunc()
  File "D:/usr/python27/Lib/site-packages/mercurial/dispatch.py", line 492, in <lambda>
    d = lambda: util.checksignature(func)(ui, *args, **cmdoptions)
  File "D:/usr/python27/Lib/site-packages/mercurial/util.py", line 420, in check
    return func(*args, **kwargs)
  File "D:/usr/python27/Lib/site-packages/mercurial/extensions.py", line 129, in wrap
    util.checksignature(origfn), *args, **kwargs)
  File "D:/usr/python27/Lib/site-packages/mercurial/util.py", line 420, in check
    return func(*args, **kwargs)
  File "D:/usr/python27/Lib/site-packages/hgext/mq.py", line 2814, in mqcommand
    return orig(ui, repo, *args, **kwargs)
  File "D:/usr/python27/Lib/site-packages/mercurial/util.py", line 420, in check
    return func(*args, **kwargs)
  File "D:/usr/python27/Lib/site-packages/mercurial/commands.py", line 3845, in update
    return hg.update(repo, rev)
  File "D:/usr/python27/Lib/site-packages/mercurial/hg.py", line 383, in update
    stats = mergemod.update(repo, node, False, False, None)
  File "D:/usr/python27/Lib/site-packages/mercurial/merge.py", line 507, in update
    wc.status(unknown=True) # prime cache
  File "D:/usr/python27/Lib/site-packages/mercurial/context.py", line 671, in status
    stat = self._repo.status(ignored=ignored, clean=clean, unknown=unknown)
  File "D:/usr/python27/Lib/site-packages/mercurial/localrepo.py", line 1061, in status
    if (f not in ctx1 or ctx2.flags(f) != ctx1.flags(f)
  File "D:/usr/python27/Lib/site-packages/mercurial/context.py", line 741, in flags
    flag = findflag(self._parents[0])
  File "D:/usr/python27/Lib/site-packages/mercurial/context.py", line 735, in findflag
    ff = self._repo.dirstate.flagfunc(lambda x: flag or '')
  File "D:/usr/python27/Lib/site-packages/mercurial/dirstate.py", line 131, in flagfunc
    if self._checklink:
  File "D:/usr/python27/Lib/site-packages/mercurial/util.py", line 163, in __get__
    result = self.func(obj)
  File "D:/usr/python27/Lib/site-packages/mercurial/dirstate.py", line 115, in _checklink
    return util.checklink(self._root)
  File "D:/usr/python27/Lib/site-packages/mercurial/util.py", line 709, in checklink
    name = tempfile.mktemp(dir=path, prefix='hg-checklink-')
  File "D:/usr/python27/Lib/site-packages/mercurial/demandimport.py", line 75, in __getattribute__
    self._load()
  File "D:/usr/python27/Lib/site-packages/mercurial/demandimport.py", line 47, in _load
    mod = _origimport(head, globals, locals)
  File "D:/usr/python27/Lib/tempfile.py", line 34, in <module>
    from random import Random as _Random
  File "D:/usr/python27/Lib/site-packages/mercurial/demandimport.py", line 106, in _demandimport
    mod = _origimport(name, globals, locals)
  File "D:/usr/python27/Lib/random.py", line 881, in <module>
    _inst = Random()
  File "D:/usr/python27/Lib/random.py", line 97, in __init__
    self.seed(x)
  File "D:/usr/python27/Lib/random.py", line 111, in seed
    a = long(_hexlify(_urandom(16)), 16)
OSError: [Errno 2] No such file or directory: '/dev/urandom'
abort: No such file or directory: /dev/urandom