If you want doctests failures here is a sample (6.7.beta4):
sage -t --long /usr/lib64/python2.7/site-packages/sage/interfaces/expect.py
**********************************************************************
File "/usr/lib64/python2.7/site-packages/sage/interfaces/expect.py", line 285, 
in sage.interfaces.expect.Expect.pid
Failed example:
    pid = gap.pid()
Exception raised:
    Traceback (most recent call last):
      File "/usr/lib64/python2.7/site-packages/sage/doctest/forker.py", line 
496, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/usr/lib64/python2.7/site-packages/sage/doctest/forker.py", line 
858, in compile_and_execute
        exec(compiled, globs)
      File "<doctest sage.interfaces.expect.Expect.pid[0]>", line 1, in <module>
        pid = gap.pid()
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/expect.py", line 
296, in pid
        self._start()
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/gap.py", line 
1168, in _start
        gap_reset_workspace(verbose=False)
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/gap.py", line 
1507, in gap_reset_workspace
        g.eval('SetUserPreference("HistoryMaxLines", 30)')
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/gap.py", line 
570, in eval
        result = Expect.eval(self, input_line, **kwds)
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/expect.py", line 
1222, in eval
        for L in code.split('\n') if L != ''])
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/gap.py", line 
727, in _eval_line
        self._start()
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/gap.py", line 
1163, in _start
        Expect._start(self, "Failed to start GAP.")
      File "/usr/lib64/python2.7/site-packages/sage/interfaces/expect.py", line 
425, in _start
        self._expect = pexpect.spawn(cmd, logfile=self.__logfile, 
env=pexpect_env)
      File "/usr/lib64/python2.7/site-packages/pexpect/__init__.py", line 493, 
in __init__
        fd = sys.__stdin__.fileno()
    ValueError: I/O operation on closed file

this particular failure is all over the place with pexpect 3.3 so there is 
something that is in need of updating on expect.py side before going ahead.

François

> On 7/05/2015, at 14:59, Bill Page <bill.p...@newsynthesis.org> wrote:
> 
> Is there a possibility of creating an experimental package to install
> pexpect 3.3 ?
> 
> I see references to "doctests failing" but no details.  It would be
> good to make this easier to test.
> 
> On 6 May 2015 at 22:41, leif <not.rea...@online.de> wrote:
>> Bill Page wrote:
>>> After reading the docs:
>>> 
>>> http://pexpect.readthedocs.org/en/latest/index.html
>>> 
>>> It seems that version 3 and later are supposed to handler unicode
>>> properly.  Version 3.3 requires Python 2.6 or later.  Since Sage is
>>> already at Python 2.7 is there a good reason why Sage is still using
>>> an older version of pexpect?
>> 
>> http://trac.sagemath.org/ticket/502 (!)
>> 
>> http://trac.sagemath.org/ticket/10295
>> 
> 
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