***************************************************************************

IPython post-mortem report

{'commit_hash': u'1ba246d',
 'commit_source': 'installation',
 'default_encoding': 'UTF-8',
 'ipython_path': '/home/sc_serv/sage/local/lib/python2.7/site-packages/IPython',
 'ipython_version': '5.0.0',
 'os_name': 'posix',
 'platform': 'Linux-4.4.0-36-generic-x86_64-with-debian-stretch-sid',
 'sys_executable': '/home/sc_serv/sage/local/bin/python',
 'sys_platform': 'linux2',
 'sys_version': '2.7.10 (default, Oct 20 2016, 05:24:29) \n[GCC 5.4.0 20160609]'}

***************************************************************************



***************************************************************************

Crash traceback:

---------------------------------------------------------------------------
---------------------------------------------------------------------------
error                    Python 2.7.10: /home/sc_serv/sage/local/bin/python
                                                   Thu Oct 20 06:21:36 2016
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.
/home/sc_serv/sage/src/bin/sage-ipython in <module>()
      1 #!/usr/bin/env python
      2 # -*- coding: utf-8 -*-
      3 """
      4 Sage IPython startup script.
      5 """
      6 
      7 from sage.repl.interpreter import SageTerminalApp
      8 
      9 app = SageTerminalApp.instance()
     10 app.initialize()
---> 11 app.start()
        global app.start = <bound method SageTerminalApp.start of <sage.repl.interpreter.SageTerminalApp object at 0x7f7da6a59e90>>

/home/sc_serv/sage/local/lib/python2.7/site-packages/IPython/terminal/ipapp.py in start(self=<sage.repl.interpreter.SageTerminalApp object>)
    333         if self.log_level <= logging.INFO: print()
    334 
    335     def _pylab_changed(self, name, old, new):
    336         """Replace --pylab='inline' with --pylab='auto'"""
    337         if new == 'inline':
    338             warnings.warn("'inline' not available as pylab backend, "
    339                       "using 'auto' instead.")
    340             self.pylab = 'auto'
    341 
    342     def start(self):
    343         if self.subapp is not None:
    344             return self.subapp.start()
    345         # perform any prexec steps:
    346         if self.interact:
    347             self.log.debug("Starting IPython's mainloop...")
--> 348             self.shell.mainloop()
        self.shell.mainloop = <bound method SageTerminalInteractiveShell.mainloop of <sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7f7da0b22b90>>
    349         else:
    350             self.log.debug("IPython not interactive...")
    351 
    352 def load_default_config(ipython_dir=None):
    353     """Load the default config file from the default ipython_dir.
    354 
    355     This is useful for embedded shells.
    356     """
    357     if ipython_dir is None:
    358         ipython_dir = get_ipython_dir()
    359 
    360     profile_dir = os.path.join(ipython_dir, 'profile_default')
    361 
    362     config = Config()
    363     for cf in Application._load_config_files("ipython_config", path=profile_dir):

/home/sc_serv/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.py in mainloop(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>, display_banner=<object object>)
    387                 if (not self.confirm_exit) \
    388                         or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'):
    389                     self.ask_exit()
    390 
    391             else:
    392                 if code:
    393                     self.run_cell(code, store_history=True)
    394 
    395     def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED):
    396         # An extra layer of protection in case someone mashing Ctrl-C breaks
    397         # out of our internal code.
    398         if display_banner is not DISPLAY_BANNER_DEPRECATED:
    399             warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2)
    400         while True:
    401             try:
--> 402                 self.interact()
        self.interact = <bound method SageTerminalInteractiveShell.interact of <sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7f7da0b22b90>>
    403                 break
    404             except KeyboardInterrupt:
    405                 print("\nKeyboardInterrupt escaped interact()\n")
    406         
    407         if hasattr(self, '_eventloop'):
    408             self._eventloop.close()
    409 
    410     _inputhook = None
    411     def inputhook(self, context):
    412         if self._inputhook is not None:
    413             self._inputhook(context)
    414 
    415     def enable_gui(self, gui=None):
    416         if gui:
    417             self._inputhook = get_inputhook_func(gui)

/home/sc_serv/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.py in interact(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>, display_banner=<object object>)
    370 
    371     def pre_prompt(self):
    372         if self.rl_next_input:
    373             self.pt_cli.application.buffer.text = cast_unicode_py2(self.rl_next_input)
    374             self.rl_next_input = None
    375 
    376     def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED):
    377 
    378         if display_banner is not DISPLAY_BANNER_DEPRECATED:
    379             warn('interact `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2)
    380 
    381         while self.keep_running:
    382             print(self.separate_in, end='')
    383 
    384             try:
--> 385                 code = self.prompt_for_code()
        code = undefined
        self.prompt_for_code = <bound method SageTerminalInteractiveShell.prompt_for_code of <sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7f7da0b22b90>>
    386             except EOFError:
    387                 if (not self.confirm_exit) \
    388                         or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'):
    389                     self.ask_exit()
    390 
    391             else:
    392                 if code:
    393                     self.run_cell(code, store_history=True)
    394 
    395     def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED):
    396         # An extra layer of protection in case someone mashing Ctrl-C breaks
    397         # out of our internal code.
    398         if display_banner is not DISPLAY_BANNER_DEPRECATED:
    399             warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2)
    400         while True:

/home/sc_serv/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.py in prompt_for_code(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>)
    306                         processor=HighlightMatchingBracketProcessor(chars='[](){}'),
    307                         filter=HasFocus(DEFAULT_BUFFER) & ~IsDone() &
    308                             Condition(lambda cli: self.highlight_matching_brackets))],
    309                 }
    310 
    311     def _update_layout(self):
    312         """
    313         Ask for a re computation of the application layout, if for example ,
    314         some configuration options have changed.
    315         """
    316         if self._pt_app:
    317             self._pt_app.layout = create_prompt_layout(**self._layout_options())
    318 
    319     def prompt_for_code(self):
    320         document = self.pt_cli.run(
--> 321             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 0x7f7da0b22b90>>
        global reset_current_buffer = undefined
        global True = undefined
    322         return document.text
    323 
    324     def init_io(self):
    325         if sys.platform not in {'win32', 'cli'}:
    326             return
    327 
    328         import win_unicode_console
    329         import colorama
    330 
    331         win_unicode_console.enable()
    332         colorama.init()
    333 
    334         # For some reason we make these wrappers around stdout/stderr.
    335         # For now, we need to reset them so all output gets coloured.
    336         # https://github.com/ipython/ipython/issues/8669

/home/sc_serv/sage/local/lib/python2.7/site-packages/prompt_toolkit/interface.py in run(self=<prompt_toolkit.interface.CommandLineInterface object>, reset_current_buffer=True, pre_run=<bound method SageTerminalInteractiveShell.pre_p...interpreter.SageTerminalInteractiveShell object>>)
    370             place. This allows custom initialisation.
    371         """
    372         assert pre_run is None or callable(pre_run)
    373 
    374         try:
    375             self._is_running = True
    376 
    377             self.on_start.fire()
    378             self.reset(reset_current_buffer=reset_current_buffer)
    379 
    380             # Call pre_run.
    381             if pre_run:
    382                 pre_run()
    383 
    384             # Run eventloop in raw mode.
--> 385             with self.input.raw_mode():
        self.input.raw_mode = <bound method StdinInput.raw_mode of StdinInput(stdin=<open file '<stdin>', mode 'r' at 0x7f7da6b820c0>)>
    386                 self.renderer.request_absolute_cursor_position()
    387                 self._redraw()
    388 
    389                 self.eventloop.run(self.input, self.create_eventloop_callbacks())
    390         finally:
    391             # Clean up renderer. (This will leave the alternate screen, if we use
    392             # that.)
    393 
    394             # If exit/abort haven't been called set, but another exception was
    395             # thrown instead for some reason, make sure that we redraw in exit
    396             # mode.
    397             if not self.is_done:
    398                 self._exit_flag = True
    399                 self._redraw()
    400 

/home/sc_serv/sage/local/lib/python2.7/site-packages/prompt_toolkit/input.py in raw_mode(self=StdinInput(stdin=<open file '<stdin>', mode 'r' at 0x7f7da6b820c0>))
     54         Context manager that turns the input into cooked mode.
     55         """
     56 
     57 
     58 class StdinInput(Input):
     59     """
     60     Simple wrapper around stdin.
     61     """
     62     def __init__(self, stdin=None):
     63         self.stdin = stdin or sys.stdin
     64 
     65     def __repr__(self):
     66         return 'StdinInput(stdin=%r)' % (self.stdin,)
     67 
     68     def raw_mode(self):
---> 69         return raw_mode(self.stdin.fileno())
        global raw_mode = <class 'prompt_toolkit.terminal.vt100_input.raw_mode'>
        self.stdin.fileno = <built-in method fileno of file object at 0x7f7da6b820c0>
     70 
     71     def cooked_mode(self):
     72         return cooked_mode(self.stdin.fileno())
     73 
     74     def fileno(self):
     75         return self.stdin.fileno()
     76 
     77     def read(self):
     78         return self.stdin.read()
     79 
     80 
     81 class PipeInput(Input):
     82     """
     83     Input that is send through a pipe.
     84     This is useful if we want to send the input programatically into the

/home/sc_serv/sage/local/lib/python2.7/site-packages/prompt_toolkit/terminal/vt100_input.py in __init__(self=<prompt_toolkit.terminal.vt100_input.raw_mode object>, fileno=0)
    394         Wrapper around ``feed`` and ``flush``.
    395         """
    396         self.feed(data)
    397         self.flush()
    398 
    399 
    400 class raw_mode(object):
    401     """
    402     ::
    403 
    404         with raw_mode(stdin):
    405             ''' the pseudo-terminal stdin is now used in raw mode '''
    406     """
    407     def __init__(self, fileno):
    408         self.fileno = fileno
--> 409         self.attrs_before = termios.tcgetattr(fileno)
        self.attrs_before = undefined
        global termios.tcgetattr = <built-in function tcgetattr>
        fileno = 0
    410 
    411     def __enter__(self):
    412         # NOTE: On os X systems, using pty.setraw() fails. Therefor we are using this:
    413         newattr = termios.tcgetattr(self.fileno)
    414         newattr[tty.LFLAG] = self._patch(newattr[tty.LFLAG])
    415         termios.tcsetattr(self.fileno, termios.TCSANOW, newattr)
    416 
    417         # Put the terminal in cursor mode. (Instead of application mode.)
    418         os.write(self.fileno, b'\x1b[?1l')
    419 
    420     def _patch(self, attrs):
    421         return attrs & ~(termios.ECHO | termios.ICANON | termios.IEXTEN | termios.ISIG)
    422 
    423     def __exit__(self, *a, **kw):
    424         termios.tcsetattr(self.fileno, termios.TCSANOW, self.attrs_before)

error: (25, 'Inappropriate ioctl for device')

***************************************************************************

History of session input:
*** Last line of input (may not be in above history):