My version is  sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux.

On 19 February 2013 08:46, Santanu Sarkar <sarkar.santanu....@gmail.com>wrote:

> Dear all,
>   when I type notebook(), I get the following error.
> Will you kindly help me?
>
>
> sage: notebook()
> ---------------------------------------------------------------------------
> EOFError                                  Traceback (most recent call last)
>
> /home/a/.sage/<ipython console> in <module>()
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/notebook/notebook_object.pyc
> in __call__(self, *args, **kwds)
>     221     """
>     222     def __call__(self, *args, **kwds):
> --> 223         return self.notebook(*args, **kwds)
>     224
>     225     notebook = run_notebook.notebook_run
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/notebook/run_notebook.pyc
> in notebook_run(self, directory, port, interface, port_tries, secure,
> reset, accounts, openid, server_pool, ulimit, timeout, upload,
> automatic_login, start_path, fork, quiet, server, profile, subnets,
> require_login, open_viewer, address)
>     526     # if none use defaults
>     527
> --> 528     nb = notebook.load_notebook(directory)
>     529
>     530     directory = nb._dir
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/notebook/notebook.pyc
> in load_notebook(dir, interface, port, secure, user_manager)
>    1794
>    1795     dir = make_path_relative(dir)
> -> 1796     nb = Notebook(dir)
>    1797     nb.interface = interface
>    1798     nb.port = port
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/notebook/notebook.pyc
> in __init__(self, dir, user_manager)
>     147         # Set the list of users
>     148         try:
> --> 149             S.load_users(self._user_manager)
>     150         except IOError:
>     151             pass
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/storage/filesystem_storage.pyc
> in load_users(self, user_manager)
>     265             {'admin': admin, 'wstein': wstein}
>     266         """
> --> 267         for user in
> self._basic_to_users(self._load('users.pickle')).itervalues():
>     268             user_manager.add_user_object(user, force=True)
>     269             user_manager.set_password(user.username(),
> user.password(), encrypt = False)
>
> /home/a/Downloads/sage-5.6-linux-32bit-ubuntu_12.04.1_lts-i686-Linux/devel/sagenb/sagenb/storage/filesystem_storage.pyc
> in _load(self, filename)
>     165     def _load(self, filename):
>     166         with open(self._abspath(filename)) as f:
> --> 167             result = cPickle.load(f)
>     168         return result
>     169
>
> EOFError:
> sage:
>
>

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