sage: alarm(1)
sage:
AlarmInterrupt escaped interact()
sage:
sage:
^[[50;1R
**********************************************************************
Oops, Sage crashed. We do our best to make it stable, but...
...
Is this supposed to happen?
Here is the crash report:
***************************************************************************
IPython post-mortem report
{'commit_hash': u'033ab93c7',
'commit_source': 'installation',
'default_encoding': 'UTF-8',
'ipython_path':
'/srv/public/kliem/sage/local/lib/python2.7/site-packages/IPython',
'ipython_version': '5.8.0',
'os_name': 'posix',
'platform': 'Linux-4.9.0-8-amd64-x86_64-with-debian-9.7',
'sys_executable': '/srv/public/kliem/sage/local/bin/python2',
'sys_platform': 'linux2',
'sys_version': '2.7.15 (default, Nov 9 2018, 13:01:06) \n[GCC 6.3.0
20170516]'}
***************************************************************************
***************************************************************************
Crash traceback:
---------------------------------------------------------------------------
---------------------------------------------------------------------------
OSError Python 2.7.15: /srv/public/kliem/sage/local/bin/python2
Wed Feb 6 10:03:08 2019
A problem occurred executing Python code. Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
/srv/public/kliem/sage/src/bin/sage-ipython in <module>()
1 #!/usr/bin/env sage-python23
2 # -*- coding: utf-8 -*-
3 """
4 Sage IPython startup script.
5 """
6
7 # Display startup banner. Do this before anything else to give the
user
8 # early feedback that Sage is starting.
9 from sage.misc.banner import banner
10 banner()
11
12 from sage.repl.interpreter import SageTerminalApp
13
14 app = SageTerminalApp.instance()
15 app.initialize()
---> 16 app.start()
global app.start = <bound method SageTerminalApp.start of
<sage.repl.interpreter.SageTerminalApp object at 0x7f0b41571d10>>
/srv/public/kliem/sage/local/lib/python2.7/site-packages/IPython/terminal/ipapp.pyc
in start(self=<sage.repl.interpreter.SageTerminalApp object>)
340 if self.log_level <= logging.INFO: print()
341
342 def _pylab_changed(self, name, old, new):
343 """Replace --pylab='inline' with --pylab='auto'"""
344 if new == 'inline':
345 warnings.warn("'inline' not available as pylab backend,
"
346 "using 'auto' instead.")
347 self.pylab = 'auto'
348
349 def start(self):
350 if self.subapp is not None:
351 return self.subapp.start()
352 # perform any prexec steps:
353 if self.interact:
354 self.log.debug("Starting IPython's mainloop...")
--> 355 self.shell.mainloop()
self.shell.mainloop = <bound method
SageTerminalInteractiveShell.mainloop of
<sage.repl.interpreter.SageTerminalInteractiveShell object at
0x7f0b3d17ab10>>
356 else:
357 self.log.debug("IPython not interactive...")
358
359 def load_default_config(ipython_dir=None):
360 """Load the default config file from the default ipython_dir.
361
362 This is useful for embedded shells.
363 """
364 if ipython_dir is None:
365 ipython_dir = get_ipython_dir()
366
367 profile_dir = os.path.join(ipython_dir, 'profile_default')
368 app = TerminalIPythonApp()
369 app.config_file_paths.append(profile_dir)
370 app.load_config_file()
/srv/public/kliem/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.pyc
in mainloop(self=<sage.repl.interpreter.SageTerminalInteractiveShell
object>, display_banner=<object object>)
480 if (not self.confirm_exit) \
481 or self.ask_yes_no('Do you really want to
exit ([y]/n)?','y','n'):
482 self.ask_exit()
483
484 else:
485 if code:
486 self.run_cell(code, store_history=True)
487
488 def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED):
489 # An extra layer of protection in case someone mashing
Ctrl-C breaks
490 # out of our internal code.
491 if display_banner is not DISPLAY_BANNER_DEPRECATED:
492 warn('mainloop `display_banner` argument is deprecated
since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning,
stacklevel=2)
493 while True:
494 try:
--> 495 self.interact()
self.interact = <bound method SageTerminalInteractiveShell.interact
of <sage.repl.interpreter.SageTerminalInteractiveShell object at
0x7f0b3d17ab10>>
496 break
497 except KeyboardInterrupt as e:
498 print("\n%s escaped interact()\n" %
type(e).__name__)
499 finally:
500 # An interrupt during the eventloop will mess up the
501 # internal state of the prompt_toolkit library.
502 # Stopping the eventloop fixes this, see
503 # https://github.com/ipython/ipython/pull/9867
504 if hasattr(self, '_eventloop'):
505 self._eventloop.stop()
506
507 _inputhook = None
508 def inputhook(self, context):
509 if self._inputhook is not None:
510 self._inputhook(context)
/srv/public/kliem/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.pyc
in interact(self=<sage.repl.interpreter.SageTerminalInteractiveShell
object>, display_banner=<object object>)
463 # Older version of prompt_toolkit; it's OK to set
the document
464 # directly here.
465 set_doc()
466 self.rl_next_input = None
467
468 def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED):
469
470 if display_banner is not DISPLAY_BANNER_DEPRECATED:
471 warn('interact `display_banner` argument is deprecated
since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning,
stacklevel=2)
472
473 self.keep_running = True
474 while self.keep_running:
475 print(self.separate_in, end='')
476
477 try:
--> 478 code = self.prompt_for_code()
code = u''
self.prompt_for_code = <bound method
SageTerminalInteractiveShell.prompt_for_code of
<sage.repl.interpreter.SageTerminalInteractiveShell object at
0x7f0b3d17ab10>>
479 except EOFError:
480 if (not self.confirm_exit) \
481 or self.ask_yes_no('Do you really want to
exit ([y]/n)?','y','n'):
482 self.ask_exit()
483
484 else:
485 if code:
486 self.run_cell(code, store_history=True)
487
488 def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED):
489 # An extra layer of protection in case someone mashing
Ctrl-C breaks
490 # out of our internal code.
491 if display_banner is not DISPLAY_BANNER_DEPRECATED:
492 warn('mainloop `display_banner` argument is deprecated
since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning,
stacklevel=2)
493 while True:
/srv/public/kliem/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.pyc
in prompt_for_code(self=<sage.repl.interpreter.SageTerminalInteractiveShell
object>)
357
processor=HighlightMatchingBracketProcessor(chars='[](){}'),
358 filter=HasFocus(DEFAULT_BUFFER) & ~IsDone()
&
359 Condition(lambda cli:
self.highlight_matching_brackets))],
360 }
361
362 def _update_layout(self):
363 """
364 Ask for a re computation of the application layout, if for
example ,
365 some configuration options have changed.
366 """
367 if self._pt_app:
368 self._pt_app.layout =
create_prompt_layout(**self._layout_options())
369
370 def prompt_for_code(self):
371 document = self.pt_cli.run(
--> 372 pre_run=self.pre_prompt, reset_current_buffer=True)
global pre_run = undefined
self.pre_prompt = <bound method
SageTerminalInteractiveShell.pre_prompt of
<sage.repl.interpreter.SageTerminalInteractiveShell object at
0x7f0b3d17ab10>>
global reset_current_buffer = undefined
global True = undefined
373 return document.text
374
375 def enable_win_unicode_console(self):
376 if sys.version_info >= (3, 6):
377 # Since PEP 528, Python uses the unicode APIs for the
Windows
378 # console by default, so WUC shouldn't be needed.
379 return
380
381 import win_unicode_console
382
383 if PY3:
384 win_unicode_console.enable()
385 else:
386 # https://github.com/ipython/ipython/issues/9768
387 from win_unicode_console.streams import
(TextStreamWrapper,
/srv/public/kliem/sage/local/lib/python2.7/site-packages/prompt_toolkit/interface.pyc
in run(self=<prompt_toolkit.interface.CommandLineInterface object>,
reset_current_buffer=True, pre_run=<bound method
SageTerminalInteractiveShell.pre_p...interpreter.SageTerminalInteractiveShell
object>>)
400
401 try:
402 self._is_running = True
403
404 self.on_start.fire()
405 self.reset()
406
407 # Call pre_run.
408 self._pre_run(pre_run)
409
410 # Run eventloop in raw mode.
411 with self.input.raw_mode():
412 self.renderer.request_absolute_cursor_position()
413 self._redraw()
414
--> 415 self.eventloop.run(self.input,
self.create_eventloop_callbacks())
self.eventloop.run = <bound method PosixEventLoop.run of
<prompt_toolkit.eventloop.posix.PosixEventLoop object at 0x7f0b3752f890>>
self.input = StdinInput(stdin=<open file '<stdin>', mode 'r' at
0x7f0b44c780c0>)
self.create_eventloop_callbacks = <bound method
CommandLineInterface.create_eventloop_callbacks of
<prompt_toolkit.interface.CommandLineInterface object at 0x7f0b374c56d0>>
416 finally:
417 # Clean up renderer. (This will leave the alternate
screen, if we use
418 # that.)
419
420 # If exit/abort haven't been called set, but another
exception was
421 # thrown instead for some reason, make sure that we
redraw in exit
422 # mode.
423 if not self.is_done:
424 self._exit_flag = True
425 self._redraw()
426
427 self.renderer.reset()
428 self.on_stop.fire()
429 self._is_running = False
430
/srv/public/kliem/sage/local/lib/python2.7/site-packages/prompt_toolkit/eventloop/posix.pyc
in run(self=<prompt_toolkit.eventloop.posix.PosixEventLoop object>,
stdin=StdinInput(stdin=<open file '<stdin>', mode 'r' at 0x7f0b44c780c0>),
callbacks=<prompt_toolkit.interface._InterfaceEventLoopCallbacks object>)
134 if fd == self._schedule_pipe[0]:
135 for c, max_postpone_until in
self._calls_from_executor:
136 if max_postpone_until is None:
137 # Execute now.
138 tasks.append(c)
139 else:
140 # Execute soon, if
`max_postpone_until` is in the future.
141 now = now or _now()
142 if max_postpone_until < now:
143 tasks.append(c)
144 else:
145
low_priority_tasks.append((c, max_postpone_until))
146 self._calls_from_executor = []
147
148 # Flush all the pipe content.
--> 149 os.read(self._schedule_pipe[0], 1024)
global os.read = <built-in function read>
self._schedule_pipe = (5, 6)
150 else:
151 handler = self._read_fds.get(fd)
152 if handler:
153 tasks.append(handler)
154
155 # When there are high priority tasks, run all
these.
156 # Schedule low priority tasks for the next
iteration.
157 if tasks:
158 for t in tasks:
159 t()
160
161 # Postpone low priority tasks.
162 for t, max_postpone_until in
low_priority_tasks:
163 self.call_from_executor(t,
_max_postpone_until=max_postpone_until)
164 else:
OSError: [Errno 11] Resource temporarily unavailable
***************************************************************************
History of session input:alarm(Integer(1))
*** Last line of input (may not be in above history):
alarm(Integer(1))
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