##// END OF EJS Templates
Handle NoSuchKernel errors more gracefully
Handle NoSuchKernel errors more gracefully

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handlers.py
51 lines | 1.5 KiB | text/x-python | PythonLexer
"""Tornado handlers for the live notebook view."""
# Copyright (c) IPython Development Team.
# Distributed under the terms of the Modified BSD License.
import os
from tornado import web
HTTPError = web.HTTPError
from ..base.handlers import (
IPythonHandler, FilesRedirectHandler,
notebook_path_regex, path_regex,
)
from ..utils import url_escape
class NotebookHandler(IPythonHandler):
@web.authenticated
def get(self, path='', name=None):
"""get renders the notebook template if a name is given, or
redirects to the '/files/' handler if the name is not given."""
path = path.strip('/')
cm = self.contents_manager
if name is None:
raise web.HTTPError(500, "This shouldn't be accessible: %s" % self.request.uri)
# a .ipynb filename was given
if not cm.file_exists(name, path):
raise web.HTTPError(404, u'Notebook does not exist: %s/%s' % (path, name))
name = url_escape(name)
path = url_escape(path)
self.write(self.render_template('notebook.html',
notebook_path=path,
notebook_name=name,
kill_kernel=False,
mathjax_url=self.mathjax_url,
)
)
#-----------------------------------------------------------------------------
# URL to handler mappings
#-----------------------------------------------------------------------------
default_handlers = [
(r"/notebooks%s" % notebook_path_regex, NotebookHandler),
(r"/notebooks%s" % path_regex, FilesRedirectHandler),
]