[gentoo-science] sage and babel

[Thomas Kahle <tomka@gentoo.org>]

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Hi,

recently my sage-on-gentoo started to crash on startup.  Something is
wrong with babel as can be seen in the end of the attached crash-report.
Any ideas?

Thanks,
Thomas

-- 
Thomas Kahle

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

IPython post-mortem report

{'commit_hash': '177894e',
 'commit_source': 'installation',
 'default_encoding': 'UTF-8',
 'ipython_path': '/usr/lib64/python2.7/site-packages/IPython',
 'ipython_version': '0.13.1',
 'os_name': 'posix',
 'platform': 'Linux-3.9.0-gentoo-x86_64-Intel-R-_Core-TM-_i5-2520M_CPU_@_2.50GHz-with-gentoo-2.2',
 'sys_executable': '/usr/bin/python2.7',
 'sys_platform': 'linux2',
 'sys_version': '2.7.5 (default, Jul  2 2013, 15:56:57) \n[GCC 4.6.3]'}

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



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

Crash traceback:

---------------------------------------------------------------------------
ImportError                                Python 2.7.5: /usr/bin/python2.7
                                                   Tue Aug 13 16:54:25 2013
A problem occured executing Python code.  Here is the sequence of function
calls leading up to the error, with the most recent (innermost) call last.
/usr/bin/sage-ipython-python2.7 in <module>()
      1 #!/usr/bin/env python2.7
      2 # -*- coding: utf-8 -*-
      3 """
      4 Sage IPython startup script.
      5 """
      6 from sage.misc.interpreter import SageTerminalApp
      7 
      8 # Make sure we're using the Sage profile if one isn't specified.
      9 import sys
     10 if '--profile' not in sys.argv:
     11     sys.argv.extend(['--profile', 'sage'])
     12 
     13 app = SageTerminalApp.instance()
---> 14 app.initialize()
        global app.initialize = <bound method SageTerminalApp.initialize of <sage.misc.interpreter.SageTerminalApp object at 0x6c4f90>>
     15 app.start()

/usr/lib64/python2.7/site-packages/IPython/frontend/terminal/ipapp.pyc in initialize(self=<sage.misc.interpreter.SageTerminalApp object>, argv=None)

/usr/lib64/python2.7/site-packages/IPython/config/application.pyc in catch_config_error(method=<function initialize>, app=<sage.misc.interpreter.SageTerminalApp object>, *args=(None,), **kwargs={})
     69 
     70 #-----------------------------------------------------------------------------
     71 # Application class
     72 #-----------------------------------------------------------------------------
     73 
     74 @decorator
     75 def catch_config_error(method, app, *args, **kwargs):
     76     """Method decorator for catching invalid config (Trait/ArgumentErrors) during init.
     77 
     78     On a TraitError (generally caused by bad config), this will print the trait's
     79     message, and exit the app.
     80     
     81     For use on init methods, to prevent invoking excepthook on invalid input.
     82     """
     83     try:
---> 84         return method(app, *args, **kwargs)
        method = <function initialize at 0x11c3230>
        app = <sage.misc.interpreter.SageTerminalApp object at 0x6c4f90>
        args = (None,)
        kwargs = {}
     85     except (TraitError, ArgumentError) as e:
     86         app.print_description()
     87         app.print_help()
     88         app.print_examples()
     89         app.log.fatal("Bad config encountered during initialization:")
     90         app.log.fatal(str(e))
     91         app.log.debug("Config at the time: %s", app.config)
     92         app.exit(1)
     93 
     94 
     95 class ApplicationError(Exception):
     96     pass
     97 
     98 
     99 class Application(SingletonConfigurable):

/usr/lib64/python2.7/site-packages/IPython/frontend/terminal/ipapp.pyc in initialize(self=<sage.misc.interpreter.SageTerminalApp object>, argv=None)
    309     
    310     @catch_config_error
    311     def initialize(self, argv=None):
    312         """Do actions after construct, but before starting the app."""
    313         super(TerminalIPythonApp, self).initialize(argv)
    314         if self.subapp is not None:
    315             # don't bother initializing further, starting subapp
    316             return
    317         if not self.ignore_old_config:
    318             check_for_old_config(self.ipython_dir)
    319         # print self.extra_args
    320         if self.extra_args and not self.something_to_run:
    321             self.file_to_run = self.extra_args[0]
    322         self.init_path()
    323         # create the shell
--> 324         self.init_shell()
        self.init_shell = <bound method SageTerminalApp.init_shell of <sage.misc.interpreter.SageTerminalApp object at 0x6c4f90>>
    325         # and draw the banner
    326         self.init_banner()
    327         # Now a variety of things that happen after the banner is printed.
    328         self.init_gui_pylab()
    329         self.init_extensions()
    330         self.init_code()
    331 
    332     def init_shell(self):
    333         """initialize the InteractiveShell instance"""
    334         # Create an InteractiveShell instance.
    335         # shell.display_banner should always be False for the terminal
    336         # based app, because we call shell.show_banner() by hand below
    337         # so the banner shows *before* all extension loading stuff.
    338         self.shell = TerminalInteractiveShell.instance(config=self.config,
    339                         display_banner=False, profile_dir=self.profile_dir,

/usr/lib64/python2.7/site-packages/sage/misc/interpreter.pyc in init_shell(self=<sage.misc.interpreter.SageTerminalApp object>)
    721             sage: from sage.misc.interpreter import SageTerminalApp, DEFAULT_SAGE_CONFIG
    722             sage: app = SageTerminalApp(config=DEFAULT_SAGE_CONFIG)
    723             sage: app.initialize(argv=[])  # indirect doctest
    724             sage: app.shell
    725             <sage.misc.interpreter.SageInteractiveShell object at 0x...>
    726         """
    727         # We need verbose crashes for the Sage crash handler.  We set it here
    728         # so that we don't overwrite the traitlet attribute
    729         self.verbose_crash = True
    730 
    731         # Shell initialization
    732         self.shell = SageInteractiveShell.instance(config=self.config,
    733                         display_banner=False, profile_dir=self.profile_dir,
    734                         ipython_dir=self.ipython_dir)
    735         self.shell.configurables.append(self)
--> 736         self.shell.extension_manager.load_extension('sage.misc.sage_extension')
        self.shell.extension_manager.load_extension = <bound method ExtensionManager.load_extension of <IPython.core.extensions.ExtensionManager object at 0x12afd10>>

/usr/lib64/python2.7/site-packages/IPython/core/extensions.pyc in load_extension(self=<IPython.core.extensions.ExtensionManager object>, module_str='sage.misc.sage_extension')
     75 
     76     def _on_ipython_dir_changed(self):
     77         if not os.path.isdir(self.ipython_extension_dir):
     78             os.makedirs(self.ipython_extension_dir, mode = 0777)
     79 
     80     def load_extension(self, module_str):
     81         """Load an IPython extension by its module name.
     82 
     83         If :func:`load_ipython_extension` returns anything, this function
     84         will return that object.
     85         """
     86         from IPython.utils.syspathcontext import prepended_to_syspath
     87 
     88         if module_str not in sys.modules:
     89             with prepended_to_syspath(self.ipython_extension_dir):
---> 90                 __import__(module_str)
        global __import__ = undefined
        module_str = 'sage.misc.sage_extension'
     91         mod = sys.modules[module_str]
     92         return self._call_load_ipython_extension(mod)
     93 
     94     def unload_extension(self, module_str):
     95         """Unload an IPython extension by its module name.
     96 
     97         This function looks up the extension's name in ``sys.modules`` and
     98         simply calls ``mod.unload_ipython_extension(self)``.
     99         """
    100         if module_str in sys.modules:
    101             mod = sys.modules[module_str]
    102             self._call_unload_ipython_extension(mod)
    103 
    104     def reload_extension(self, module_str):
    105         """Reload an IPython extension by calling reload.

/usr/lib64/python2.7/site-packages/sage/misc/sage_extension.py in <module>()
     35     2
     36 
     37 In contrast, input to the ``%time`` magic command is preparsed::
     38 
     39     sage: shell.run_cell('%time 594.factor()')
     40     CPU times: user ...
     41     Wall time: ...
     42     2 * 3^3 * 11
     43 """
     44 
     45 from IPython.core.hooks import TryNext
     46 from IPython.core.magic import Magics, magics_class, line_magic
     47 import os
     48 import sys
     49 import sage
---> 50 import sage.all
        global sage.all = undefined
     51 from sage.misc.interpreter import preparser
     52 from sage.misc.preparser import preparse
     53 
     54 @magics_class
     55 class SageMagics(Magics):
     56 
     57     @line_magic
     58     def runfile(self, s):
     59         r"""     
     60         Loads the code contained in the file ``s``. This is designed
     61         to be used from the command line as ``%runfile /path/to/file``.
     62 
     63         :param s: file to be loaded
     64         :type s: string
     65 

/usr/lib64/python2.7/site-packages/sage/all.py in <module>()
     99 from sage.schemes.all    import *
    100 from sage.graphs.all     import *
    101 from sage.groups.all     import *
    102 from sage.databases.all  import *
    103 from sage.structure.all  import *
    104 from sage.categories.all import *
    105 from sage.sets.all       import *
    106 from sage.probability.all import *
    107 from sage.interfaces.all import *
    108 
    109 from sage.symbolic.all   import *
    110 
    111 from sage.functions.all  import *
    112 from sage.calculus.all   import *
    113 
--> 114 from sage.server.all     import *
        global sage.server.all = undefined
    115 import sage.tests.all as tests
    116 
    117 from sage.crypto.all     import *
    118 import sage.crypto.mq as mq
    119 
    120 from sage.plot.all       import *
    121 from sage.plot.plot3d.all     import *
    122 
    123 from sage.coding.all     import *
    124 from sage.combinat.all   import *
    125 
    126 from sage.lfunctions.all import *
    127 
    128 from sage.geometry.all   import *
    129 from sage.geometry.triangulation.all   import *

/usr/lib64/python2.7/site-packages/sage/server/all.py in <module>()
      1 #from server1.all import *
----> 2 from notebook.all import *
        global notebook.all = undefined
      3 from trac.all import *
      4 

/usr/lib64/python2.7/site-packages/sage/server/notebook/all.py in <module>()
      7 #                  http://www.gnu.org/licenses/
      8 #############################################################################
      9 
     10 #from sage_email import email
     11 
     12 #from sagenb.notebook.notebook_object import notebook, inotebook
     13 
     14 #from interact import interact, input_box, slider, range_slider, selector, checkbox, input_grid, text_control
     15 
     16 # We import the following two only for doctesting purposes
     17 #import sage.server.notebook.notebook
     18 #import sage.server.notebook.interact
     19 #import sage.server.notebook.sage_email
     20 
     21 # Import the new separated Sage notebook.
---> 22 from sagenb.notebook.all import *
        global sagenb.notebook.all = undefined

/usr/lib64/python2.7/site-packages/sagenb/notebook/all.py in <module>()
      1 # -*- coding: utf-8 -*
      2 """nodoctest
      3 """
      4 #############################################################################
      5 #       Copyright (C) 2007 William Stein <wstein@gmail.com>
      6 #  Distributed under the terms of the GNU General Public License (GPL)
      7 #  The full text of the GPL is available at:
      8 #                  http://www.gnu.org/licenses/
      9 #############################################################################
     10 
     11 #from test_notebook import notebook_playback
     12 
     13 from sage_email import email
     14 
---> 15 from notebook_object import notebook, inotebook
        global notebook_object = undefined
        global notebook = undefined
        global inotebook = undefined
     16 
     17 from interact import interact, input_box, slider, range_slider, selector, checkbox, input_grid, text_control, color_selector
     18 
     19 # For doctesting.
     20 import sagenb

/usr/lib64/python2.7/site-packages/sagenb/notebook/notebook_object.py in <module>()
      2 """nodoctest
      3 Configure and Start a Notebook Server
      4 
      5 The :class:`NotebookObject` is used to configure and launch a Sage
      6 Notebook server.
      7 """
      8 #############################################################################
      9 #       Copyright (C) 2007 William Stein <wstein@gmail.com>
     10 #  Distributed under the terms of the GNU General Public License (GPL)
     11 #  The full text of the GPL is available at:
     12 #                  http://www.gnu.org/licenses/
     13 #############################################################################
     14 
     15 import time, os, shutil, signal, tempfile
     16 
---> 17 import notebook as _notebook
        global notebook = undefined
        global _notebook = undefined
     18 
     19 import run_notebook
     20 
     21 class NotebookObject:
     22     r"""
     23     Start the Sage Notebook server.  More details about using these
     24     options, as well as tips and tricks, may be available at `this
     25     Sage wiki page`_.  If a notebook server is already running in the
     26     directory, this will open a browser to the running notebook.
     27 
     28     INPUT:
     29 
     30         - ``directory`` -- string; directory that contains the Sage
     31           notebook files; the default is
     32           ``.sage/sage_notebook.sagenb``, in your home directory.

/usr/lib64/python2.7/site-packages/sagenb/notebook/notebook.py in <module>()
     24 import random
     25 import re
     26 import shutil
     27 import socket
     28 import time
     29 import bz2
     30 import cPickle
     31 from cgi import escape
     32 
     33 
     34 # Sage libraries
     35 from sagenb.misc.misc import (pad_zeros, cputime, tmp_dir, load, save,
     36                               ignore_nonexistent_files, unicode_str)
     37 
     38 # Sage Notebook
---> 39 from . import css          # style
        global css = undefined
     40 from . import js           # javascript
     41 from . import worksheet    # individual worksheets (which make up a notebook)
     42 from . import config       # internal configuration stuff (currently, just keycodes)
     43 from . import keyboards    # keyboard layouts
     44 from . import server_conf  # server configuration
     45 from . import user_conf    # user configuration
     46 from . import user         # users
     47 from   template import template, prettify_time_ago
     48 from flaskext.babel import gettext, lazy_gettext
     49 
     50 try:
     51     # sage is installed
     52     import sage
     53     # [(string: name, bool: optional)]
     54     SYSTEMS = [('sage', False),

/usr/lib64/python2.7/site-packages/sagenb/notebook/css.py in <module>()
      2 """nodoctest
      3 Notebook Stylesheets (CSS)
      4 """
      5 
      6 
      7 #############################################################################
      8 #       Copyright (C) 2007 William Stein <wstein@gmail.com>
      9 #  Distributed under the terms of the GNU General Public License (GPL)
     10 #  The full text of the GPL is available at:
     11 #                  http://www.gnu.org/licenses/
     12 #############################################################################
     13 
     14 import os
     15 
     16 from sagenb.misc.misc import DOT_SAGENB
---> 17 from sagenb.notebook.template import template
        global sagenb.notebook.template = undefined
        global template = undefined
     18 from hashlib import sha1
     19 
     20 _css_cache = None
     21 def css(color='default'):
     22     r"""
     23     Return the CSS header used by the Sage Notebook.
     24     
     25     INPUT:
     26     
     27     
     28     -  ``color`` - string or pair of html colors, e.g.,
     29        'gmail' 'grey' ``('#ff0000', '#0000ff')``
     30     
     31     
     32     EXAMPLES::

/usr/lib64/python2.7/site-packages/sagenb/notebook/template.py in <module>()
      9 - Timothy Clemans and Mike Hansen (2008-10-27): major update
     10 """
     11 #############################################################################
     12 #       Copyright (C) 2007 William Stein <wstein@gmail.com>
     13 #  Distributed under the terms of the GNU General Public License (GPL)
     14 #  The full text of the GPL is available at:
     15 #                  http://www.gnu.org/licenses/
     16 #############################################################################
     17 
     18 import jinja2
     19 
     20 import os, re, sys, json
     21 
     22 from sagenb.misc.misc import SAGE_VERSION, DATA, unicode_str
     23 from sagenb.notebook.cell import number_of_rows
---> 24 from flaskext.babel import gettext, ngettext, lazy_gettext
        global flaskext.babel = undefined
        global gettext = undefined
        global ngettext = undefined
        global lazy_gettext = undefined
     25 
     26 if os.environ.has_key('SAGENB_TEMPLATE_PATH'):
     27     if not os.path.isdir(os.environ['SAGENB_TEMPLATE_PATH']):
     28         raise ValueError("Enviromental variable SAGENB_TEMPLATE_PATH points to\
     29                          a non-existant directory")
     30     TEMPLATE_PATH = os.environ['SAGENB_TEMPLATE_PATH']
     31 else:
     32     TEMPLATE_PATH = os.path.join(DATA, 'sage')
     33 env = jinja2.Environment(loader=jinja2.FileSystemLoader(TEMPLATE_PATH))
     34 
     35 css_illegal_re = re.compile(r'[^-A-Za-z_0-9]')
     36 
     37 def css_escape(string):
     38     r"""
     39     Returns a string with all characters not legal in a css name

ImportError: No module named babel

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

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

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