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***************************************************************************
IPython post-mortem report
{'commit_hash': u'f76401f',
'commit_source': 'installation',
'default_encoding': 'UTF-8',
'ipython_path': '/opt/sage/local/lib/python2.7/site-packages/IPython',
'ipython_version': '4.1.2',
'os_name': 'posix',
'platform': 'Linux-4.4.0-34-generic-x86_64-with-debian-jessie-sid',
'sys_executable': '/opt/sage/local/bin/python',
'sys_platform': 'linux2',
'sys_version': '2.7.10 (default, May 16 2016, 05:06:16) \n[GCC 4.9.3]'}
***************************************************************************
***************************************************************************
Crash traceback:
---------------------------------------------------------------------------
---------------------------------------------------------------------------
IndexError Python 2.7.10: /opt/sage/local/bin/python
Mon Aug 29 09:42:41 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.
/opt/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 # Install extra readline commands before IPython initialization
8 from sage.repl.readline_extra_commands import *
9
10 from sage.repl.interpreter import SageTerminalApp
11
12 app = SageTerminalApp.instance()
13 app.initialize()
---> 14 app.start()
global app.start = <bound method SageTerminalApp.start of
<sage.repl.interpreter.SageTerminalApp object at 0x7fb83a148150>>
/opt/sage/local/lib/python2.7/site-packages/IPython/terminal/ipapp.pyc in
start(self=<sage.repl.interpreter.SageTerminalApp object>)
330 if self.log_level <= logging.INFO: print()
331
332 def _pylab_changed(self, name, old, new):
333 """Replace --pylab='inline' with --pylab='auto'"""
334 if new == 'inline':
335 warn.warn("'inline' not available as pylab backend, "
336 "using 'auto' instead.")
337 self.pylab = 'auto'
338
339 def start(self):
340 if self.subapp is not None:
341 return self.subapp.start()
342 # perform any prexec steps:
343 if self.interact:
344 self.log.debug("Starting IPython's mainloop...")
--> 345 self.shell.mainloop()
self.shell.mainloop = <bound method
SageTerminalInteractiveShell.mainloop of
<sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7fb833d08950>>
346 else:
347 self.log.debug("IPython not interactive...")
348
349 def load_default_config(ipython_dir=None):
350 """Load the default config file from the default ipython_dir.
351
352 This is useful for embedded shells.
353 """
354 if ipython_dir is None:
355 ipython_dir = get_ipython_dir()
356
357 profile_dir = os.path.join(ipython_dir, 'profile_default')
358
359 config = Config()
360 for cf in Application._load_config_files("ipython_config",
path=profile_dir):
/opt/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.pyc
in mainloop(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>,
display_banner=None)
533
#-------------------------------------------------------------------------
534 # Mainloop and code execution logic
535
#-------------------------------------------------------------------------
536
537 def mainloop(self, display_banner=None):
538 """Start the mainloop.
539
540 If an optional banner argument is given, it will override the
541 internally created default banner.
542 """
543
544 with self.builtin_trap, self.display_trap:
545
546 while 1:
547 try:
--> 548 self.interact(display_banner=display_banner)
self.interact = <bound method SageTerminalInteractiveShell.interact of
<sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7fb833d08950>>
display_banner = None
549 #self.interact_with_readline()
550 # XXX for testing of a readline-decoupled repl
loop, call
551 # interact_with_readline above
552 break
553 except KeyboardInterrupt:
554 # this should not be necessary, but
KeyboardInterrupt
555 # handling seems rather unpredictable...
556 self.write("\nKeyboardInterrupt in interact()\n")
557
558 def _replace_rlhist_multiline(self, source_raw, hlen_before_cell):
559 """Store multiple lines as a single entry in history"""
560
561 # do nothing without readline or disabled multiline
562 if not self.has_readline or not self.multiline_history:
563 return hlen_before_cell
/opt/sage/local/lib/python2.7/site-packages/IPython/terminal/interactiveshell.pyc
in interact(self=<sage.repl.interpreter.SageTerminalInteractiveShell object>,
display_banner=False)
643 except EOFError:
644 if self.autoindent:
645 self.rl_do_indent = False
646 if self.has_readline:
647 self.readline_startup_hook(None)
648 self.write('\n')
649 self.exit()
650 except bdb.BdbQuit:
651 warn('The Python debugger has exited with a BdbQuit
exception.\n'
652 'Because of how pdb handles the stack, it is
impossible\n'
653 'for IPython to properly format this particular
exception.\n'
654 'IPython will resume normal operation.')
655 except:
656 # exceptions here are VERY RARE, but they can be
triggered
657 # asynchronously by signal handlers, for example.
--> 658 self.showtraceback()
self.showtraceback = <bound method
SageTerminalInteractiveShell.showtraceback of
<sage.repl.interpreter.SageTerminalInteractiveShell object at 0x7fb833d08950>>
659 else:
660 try:
661 self.input_splitter.push(line)
662 more = self.input_splitter.push_accepts_more()
663 except SyntaxError:
664 # Run the code directly - run_cell takes care of
displaying
665 # the exception.
666 more = False
667 if (self.SyntaxTB.last_syntax_error and
668 self.autoedit_syntax):
669 self.edit_syntax_error()
670 if not more:
671 source_raw = self.input_splitter.raw_reset()
672 self.run_cell(source_raw, store_history=True)
673 hlen_b4_cell = \
/opt/sage/local/lib/python2.7/site-packages/IPython/core/interactiveshell.pyc
in showtraceback(self=<sage.repl.interpreter.SageTerminalInteractiveShell
object>, exc_tuple=None, filename=None, tb_offset=None, exception_only=False)
1815 self.show_usage_error(value)
1816 else:
1817 if exception_only:
1818 stb = ['An exception has occurred, use %tb to see '
1819 'the full traceback.\n']
1820
stb.extend(self.InteractiveTB.get_exception_only(etype,
1821
value))
1822 else:
1823 try:
1824 # Exception classes can customise their
traceback - we
1825 # use this in IPython.parallel for exceptions
occurring
1826 # in the engines. This should return a list of
strings.
1827 stb = value._render_traceback_()
1828 except Exception:
1829 stb =
self.InteractiveTB.structured_traceback(etype,
-> 1830 value, tb,
tb_offset=tb_offset)
value = TimeoutException()
tb = <traceback object at 0x7fb5f9033248>
tb_offset = None
1831
1832 self._showtraceback(etype, value, stb)
1833 if self.call_pdb:
1834 # drop into debugger
1835 self.debugger(force=True)
1836 return
1837
1838 # Actually show the traceback
1839 self._showtraceback(etype, value, stb)
1840
1841 except KeyboardInterrupt:
1842 self.write_err('\n' + self.get_exception_only())
1843
1844 def _showtraceback(self, etype, evalue, stb):
1845 """Actually show a traceback.
/opt/sage/local/lib/python2.7/site-packages/IPython/core/ultratb.pyc in
structured_traceback(self=<IPython.core.ultratb.AutoFormattedTB object>,
etype=<class '__main__.TimeoutException'>, value=TimeoutException(),
tb=<traceback object>, tb_offset=None, number_of_lines_of_context=5)
1377 out.write('\n')
1378 out.flush()
1379 # FIXME: we should remove the auto pdb behavior from here and
leave
1380 # that to the clients.
1381 try:
1382 self.debugger()
1383 except KeyboardInterrupt:
1384 print("\nKeyboardInterrupt")
1385
1386 def structured_traceback(self, etype=None, value=None, tb=None,
1387 tb_offset=None,
number_of_lines_of_context=5):
1388 if etype is None:
1389 etype, value, tb = sys.exc_info()
1390 self.tb = tb
1391 return FormattedTB.structured_traceback(
-> 1392 self, etype, value, tb, tb_offset,
number_of_lines_of_context)
self = <IPython.core.ultratb.AutoFormattedTB object at 0x7fb834edb650>
etype = <class '__main__.TimeoutException'>
value = TimeoutException()
tb = <traceback object at 0x7fb5f9033248>
tb_offset = None
number_of_lines_of_context = 5
1393
1394
1395
#---------------------------------------------------------------------------
1396
1397 # A simple class to preserve Nathan's original functionality.
1398 class ColorTB(FormattedTB):
1399 """Shorthand to initialize a FormattedTB in Linux colors mode."""
1400
1401 def __init__(self, color_scheme='Linux', call_pdb=0, **kwargs):
1402 FormattedTB.__init__(self, color_scheme=color_scheme,
1403 call_pdb=call_pdb, **kwargs)
1404
1405
1406 class SyntaxTB(ListTB):
1407 """Extension which holds some state: the last exception value"""
/opt/sage/local/lib/python2.7/site-packages/IPython/core/ultratb.pyc in
structured_traceback(self=<IPython.core.ultratb.AutoFormattedTB object>,
etype=<class '__main__.TimeoutException'>, value=TimeoutException(),
tb=<traceback object>, tb_offset=1, number_of_lines_of_context=5)
1285 # set_mode also sets the tb_join_char attribute
1286 self.set_mode(mode)
1287
1288 def _extract_tb(self, tb):
1289 if tb:
1290 return traceback.extract_tb(tb)
1291 else:
1292 return None
1293
1294 def structured_traceback(self, etype, value, tb, tb_offset=None,
number_of_lines_of_context=5):
1295 tb_offset = self.tb_offset if tb_offset is None else tb_offset
1296 mode = self.mode
1297 if mode in self.verbose_modes:
1298 # Verbose modes need a full traceback
1299 return VerboseTB.structured_traceback(
-> 1300 self, etype, value, tb, tb_offset,
number_of_lines_of_context
self = <IPython.core.ultratb.AutoFormattedTB object at 0x7fb834edb650>
etype = <class '__main__.TimeoutException'>
value = TimeoutException()
tb = <traceback object at 0x7fb5f9033248>
tb_offset = 1
number_of_lines_of_context = 5
1301 )
1302 else:
1303 # We must check the source cache because otherwise we can
print
1304 # out-of-date source code.
1305 self.check_cache()
1306 # Now we can extract and format the exception
1307 elist = self._extract_tb(tb)
1308 return ListTB.structured_traceback(
1309 self, etype, value, elist, tb_offset,
number_of_lines_of_context
1310 )
1311
1312 def stb2text(self, stb):
1313 """Convert a structured traceback (a list) to a string."""
1314 return self.tb_join_char.join(stb)
1315
/opt/sage/local/lib/python2.7/site-packages/IPython/core/ultratb.pyc in
structured_traceback(self=<IPython.core.ultratb.AutoFormattedTB object>,
etype=<class '__main__.TimeoutException'>, evalue=TimeoutException(),
etb=<traceback object>, tb_offset=1, number_of_lines_of_context=5)
1169
chained_exceptions_tb_offset)
1170 exception = self.get_parts_of_chained_exception(evalue)
1171
1172 if exception and not id(exception[1]) in
chained_exc_ids:
1173 chained_exc_ids.add(id(exception[1])) # trace
exception to avoid infinite 'cause' loop
1174 formatted_exceptions +=
self.prepare_chained_exception_message(evalue.__cause__)
1175 etype, evalue, etb = exception
1176 else:
1177 evalue = None
1178
1179 # we want to see exceptions in a reversed order:
1180 # the first exception should be on top
1181 for formatted_exception in reversed(formatted_exceptions):
1182 structured_traceback_parts += formatted_exception
1183 else:
-> 1184 structured_traceback_parts += formatted_exception[0]
structured_traceback_parts =
[u'\x1b[0;31m---------------------------------------------------------------------------\x1b[0m']
formatted_exception = u''
1185
1186 return structured_traceback_parts
1187
1188 def debugger(self, force=False):
1189 """Call up the pdb debugger if desired, always clean up the tb
1190 reference.
1191
1192 Keywords:
1193
1194 - force(False): by default, this routine checks the instance
call_pdb
1195 flag and does not actually invoke the debugger if the flag
is false.
1196 The 'force' option forces the debugger to activate even if
the flag
1197 is false.
1198
1199 If the call_pdb flag is set, the pdb interactive debugger is
IndexError: string index out of range
***************************************************************************
History of session input:get_ipython().magic(u'cd sage/sfiles/ectp')from
__future__ import divisionget_ipython().magic(u'attach
cellnegerator.sage')runsim()runsim()runsim()runsim()runsim()runsim()runsim()signal.alarm(Integer(5))signal.alarm(Integer(5))signal.alarm(Integer(5))signal.alarm(Integer(5))runsim()runsim()
*** Last line of input (may not be in above history):
runsim()
