##// END OF EJS Templates
actually send only one kernel_info request...
actually send only one kernel_info request store the Future for the initial request, allowing subsequent requests to wait on the same pending reply. Previously, any incoming requests that arrived while waiting for the first reply would send their own request.

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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),
]