#9163: Doctest error in expect.py on Cygwin and OS X
--------------------------+-------------------------------------------------
Reporter: was | Owner: was
Type: defect | Status: new
Priority: major | Milestone: sage-4.6.1
Component: interfaces | Keywords: cygwin osx expect doctest
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
--------------------------+-------------------------------------------------
Changes (by jdemeyer):
* keywords: => cygwin osx expect doctest
* owner: tbd => was
* component: cygwin => interfaces
Old description:
> {{{
>
> sage -t "devel/sage/sage/interfaces/expect.py"
> **********************************************************************
> File "/home/wstein/sage-4.4.3/devel/sage/sage/interfaces/expect.py", line
> 808:
> sage: print sage0.eval("alarm(1); singular._expect_expr('1')")
> Expected:
> Control-C pressed. Interrupting Singular. Please wait a few
> seconds...
> ...
> KeyboardInterrupt: computation timed out because alarm was set for 1
> seconds
> Got:
> ---------------------------------------------------------------------------
> KeyboardInterrupt Traceback (most recent call
> last)
> <BLANKLINE>
> /home/wstein/sage-4.4.3/data/extcode/sage/<ipython console> in
> <module>()
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-
> packages/sage/interfaces/expect.pyc in _expect_expr(self, expr, timeout)
> 815 expr = self._prompt_wait
> 816 if self._expect is None:
> --> 817 self._start()
> 818 try:
> 819 if timeout:
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-
> packages/sage/interfaces/singular.pyc in _start(self, alt_message)
> 373 """
> 374 self.__libs = []
> --> 375 Expect._start(self, alt_message)
> 376 # Load some standard libraries.
> 377 self.lib('general') # assumed loaded by
> misc/constants.py
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-
> packages/sage/interfaces/expect.pyc in _start(self, alt_message,
> block_during_init)
> 447 c = 'sage-native-execute ssh %s "nohup sage
> -cleaner" &'%self._server
> 448 os.system(c)
> --> 449 self._expect = pexpect.spawn(cmd,
> logfile=self.__logfile)
> 450 if self._do_cleaner():
> 451 cleaner.cleaner(self._expect.pid, cmd)
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-packages/pexpect.pyc
> in __init__(self, command, args, timeout, maxread, searchwindowsize,
> logfile)
> 331
> 332 self.name = '<' + ' '.join (self.args) + '>'
> --> 333 self.__spawn()
> 334
> 335 def __del__(self):
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-packages/pexpect.pyc
> in __spawn(self)
> 399
> 400 try:
> --> 401 self.pid, self.child_fd = pty.fork()
> 402 except OSError, e:
> 403 raise ExceptionPexpect('Pexpect: pty.fork()
> failed: ' + str(e))
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python/pty.pyc in fork()
> 93
> 94 try:
> ---> 95 pid, fd = os.forkpty()
> 96 except (AttributeError, OSError):
> 97 pass
> <BLANKLINE>
> /home/wstein/sage-4.4.3/local/lib/python2.6/site-
> packages/sage/misc/misc.pyc in __mysig(a, b)
> 1690 __alarm_time=0
> 1691 def __mysig(a,b):
> -> 1692 raise KeyboardInterrupt, "computation timed out because
> alarm was set for %s seconds"%__alarm_time
> 1693
> 1694 def alarm(seconds):
> <BLANKLINE>
> KeyboardInterrupt: computation timed out because alarm was set for 1
> seconds
> **********************************************************************
> 1 items had failures:
> 1 of 10 in __main__.example_15
> ***Test Failed*** 1 failures.
> }}}
New description:
On Cygwin and on OS X 10.6, the doctest {{{sage/interfaces/expect.py}}}
fails:
{{{
sage -t "devel/sage/sage/interfaces/expect.py"
**********************************************************************
File "/home/wstein/sage-4.4.3/devel/sage/sage/interfaces/expect.py", line
808:
sage: print sage0.eval("alarm(1); singular._expect_expr('1')")
Expected:
Control-C pressed. Interrupting Singular. Please wait a few
seconds...
...
KeyboardInterrupt: computation timed out because alarm was set for 1
seconds
Got:
---------------------------------------------------------------------------
KeyboardInterrupt Traceback (most recent call
last)
<BLANKLINE>
/home/wstein/sage-4.4.3/data/extcode/sage/<ipython console> in
<module>()
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-
packages/sage/interfaces/expect.pyc in _expect_expr(self, expr, timeout)
815 expr = self._prompt_wait
816 if self._expect is None:
--> 817 self._start()
818 try:
819 if timeout:
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-
packages/sage/interfaces/singular.pyc in _start(self, alt_message)
373 """
374 self.__libs = []
--> 375 Expect._start(self, alt_message)
376 # Load some standard libraries.
377 self.lib('general') # assumed loaded by
misc/constants.py
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-
packages/sage/interfaces/expect.pyc in _start(self, alt_message,
block_during_init)
447 c = 'sage-native-execute ssh %s "nohup sage
-cleaner" &'%self._server
448 os.system(c)
--> 449 self._expect = pexpect.spawn(cmd,
logfile=self.__logfile)
450 if self._do_cleaner():
451 cleaner.cleaner(self._expect.pid, cmd)
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-packages/pexpect.pyc
in __init__(self, command, args, timeout, maxread, searchwindowsize,
logfile)
331
332 self.name = '<' + ' '.join (self.args) + '>'
--> 333 self.__spawn()
334
335 def __del__(self):
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-packages/pexpect.pyc
in __spawn(self)
399
400 try:
--> 401 self.pid, self.child_fd = pty.fork()
402 except OSError, e:
403 raise ExceptionPexpect('Pexpect: pty.fork()
failed: ' + str(e))
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python/pty.pyc in fork()
93
94 try:
---> 95 pid, fd = os.forkpty()
96 except (AttributeError, OSError):
97 pass
<BLANKLINE>
/home/wstein/sage-4.4.3/local/lib/python2.6/site-
packages/sage/misc/misc.pyc in __mysig(a, b)
1690 __alarm_time=0
1691 def __mysig(a,b):
-> 1692 raise KeyboardInterrupt, "computation timed out because
alarm was set for %s seconds"%__alarm_time
1693
1694 def alarm(seconds):
<BLANKLINE>
KeyboardInterrupt: computation timed out because alarm was set for 1
seconds
**********************************************************************
1 items had failures:
1 of 10 in __main__.example_15
***Test Failed*** 1 failures.
}}}
--
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9163#comment:1>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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