On Wednesday, May 18, 2016, Brian Beavers <drbeavers...@gmail.com> wrote:
> Looks like there's more going on than just a lack of pty. Here's the
> result:
>
>
Well that is just another test of pty...
> sage: gp.eval('2+2')
> ---------------------------------------------------------------------------
> OSError Traceback (most recent call last)
> <ipython-input-1-e5d4083fb83e> in <module>()
> ----> 1 gp.eval('2+2')
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
> in eval(self, code, strip, synchronize, locals, allow_use_file,
> split_lines, **kwds)
> 1237 elif split_lines:
> 1238 return '\n'.join([self._eval_line(L,
> allow_use_file=allow_use_file, **kwds)
> -> 1239 for L in code.split('\n')
> if L != ''])
> 1240 else:
> 1241 return self._eval_line(code,
> allow_use_file=allow_use_file, **kwds)
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/sage/interfaces/gp.pyc
> in _eval_line(self, line, allow_use_file, wait_for_prompt,
> restart_if_needed)
> 437 a = Expect._eval_line(self, line,
> 438 allow_use_file=allow_use_file,
> --> 439 wait_for_prompt=wait_for_prompt)
> 440 if a.find("the PARI stack overflows") != -1:
> 441 verbose("automatically doubling the PARI stack and
> re-executing current input line")
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
> in _eval_line(self, line, allow_use_file, wait_for_prompt,
> restart_if_needed)
> 848 try:
> 849 if self._expect is None:
> --> 850 self._start()
> 851 E = self._expect
> 852 try:
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/sage/interfaces/gp.pyc
> in _start(self, alt_message, block_during_init)
> 237
> 238 def _start(self, alt_message=None, block_during_init=True):
> --> 239 Expect._start(self, alt_message, block_during_init)
> 240 # disable timer
> 241 self._eval_line('default(timer,0);')
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/sage/interfaces/expect.pyc
> in _start(self, alt_message, block_during_init)
> 423 env=pexpect_env,
> 424 name=self._repr_(),
> --> 425 quit_string=self._quit_string())
> 426 except (ExceptionPexpect, pexpect.EOF) as e:
> 427 # Change pexpect errors to RuntimeError
>
> sage/interfaces/sagespawn.pyx in
> sage.interfaces.sagespawn.SageSpawn.__init__
> (/usr/lib/sagemath//src/build/cythonized/sage/interfaces/sagespawn.c:1331)()
>
> sage/interfaces/sagespawn.pyx in
> sage.interfaces.sagespawn.SageSpawn.__init__
> (/usr/lib/sagemath//src/build/cythonized/sage/interfaces/sagespawn.c:1284)()
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/pexpect/pty_spawn.pyc
> in __init__(self, command, args, timeout, maxread, searchwindowsize,
> logfile, cwd, env, ignore_sighup, echo, preexec_fn, encoding, codec_errors,
> dimensions)
> 191 self.name = '<pexpect factory incomplete>'
> 192 else:
> --> 193 self._spawn(command, args, preexec_fn, dimensions)
> 194
> 195 def __str__(self):
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/pexpect/pty_spawn.pyc
> in _spawn(self, command, args, preexec_fn, dimensions)
> 286
> 287 self.ptyproc = self._spawnpty(self.args, env=self.env,
> --> 288 cwd=self.cwd, **kwargs)
> 289
> 290 self.pid = self.ptyproc.pid
>
> sage/interfaces/sagespawn.pyx in
> sage.interfaces.sagespawn.SageSpawn._spawnpty
> (/usr/lib/sagemath//src/build/cythonized/sage/interfaces/sagespawn.c:1520)()
>
> /usr/lib/sagemath/local/lib/python2.7/site-packages/ptyprocess/ptyprocess.pyc
> in spawn(cls, argv, cwd, env, echo, preexec_fn, dimensions)
> 218
> 219 if use_native_pty_fork:
> --> 220 pid, fd = pty.fork()
> 221 else:
> 222 # Use internal fork_pty, for Solaris
>
> /usr/lib/sagemath/local/lib/python/pty.pyc in fork()
> 105 return pid, fd
> 106
> --> 107 master_fd, slave_fd = openpty()
> 108 pid = os.fork()
> 109 if pid == CHILD:
>
> /usr/lib/sagemath/local/lib/python/pty.pyc in openpty()
> 27 except (AttributeError, OSError):
> 28 pass
> ---> 29 master_fd, slave_name = _open_terminal()
> 30 slave_fd = slave_open(slave_name)
> 31 return master_fd, slave_fd
>
> /usr/lib/sagemath/local/lib/python/pty.pyc in _open_terminal()
> 68 continue
> 69 return (fd, '/dev/tty' + x + y)
> ---> 70 raise os.error, 'out of pty devices'
> 71
> 72 def slave_open(tty_name):
>
> OSError: out of pty devices
>
>
> Brian Beavers, Ph.D., Associate Professor
> Department of Mathematics & Statistics
> Stephen F. Austin State University
>
> On Wed, May 18, 2016 at 8:50 AM, William Stein <wst...@gmail.com
> <javascript:_e(%7B%7D,'cvml','wst...@gmail.com');>> wrote:
>
>>
>>
>> On Wednesday, May 18, 2016, Brian Beavers <drbeavers...@gmail.com
>> <javascript:_e(%7B%7D,'cvml','drbeavers...@gmail.com');>> wrote:
>>
>>> I've discovered why the notebook server (and administrative pages
>>> within) loads but notebooks do not load: WSL does not yet suppot pty. When
>>> I try to create a worksheet, back in the terminal Sage throws an error that
>>> it is out of pty instances.
>>>
>>>
>> What happens if you do
>>
>> gp.eval('2+2')
>>
>> in the terminal?
>>
>> Also, unlike sagenb, jupyter doesn't use pty's so it won't have this
>> obstruction.
>>
>>
>>>
>>>
>>> Brian Beavers, Ph.D., Associate Professor
>>> Department of Mathematics & Statistics
>>> Stephen F. Austin State University
>>>
>>> On Mon, May 16, 2016 at 2:31 AM, Dima Pasechnik <dimp...@gmail.com>
>>> wrote:
>>>
>>>> one can do graphics in a browser running on the host, so this is not
>>>> really a big limitation.
>>>>
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>>>
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>>
>>
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