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Modifies Contents API to return Error objects...
Modifies Contents API to return Error objects Modfies the Contents class to return JavaScript Error objects instead of passing on the return values from $.ajax(). This has two advantages. First, it allows the content manager to parse errors and give more informative messages than the ajax response. Second, it makes the Contents interface more general, since other kinds of backends might generate client-side errors.
Thomas Kluyver - - Load All Authors

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restarter.py
54 lines | 1.7 KiB | text/x-python | PythonLexer
/ IPython / kernel / ioloop / restarter.py
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"""A basic in process kernel monitor with autorestarting.
This watches a kernel's state using KernelManager.is_alive and auto
restarts the kernel if it dies.
"""
#-----------------------------------------------------------------------------
# Copyright (C) 2013 The IPython Development Team
#
# Distributed under the terms of the BSD License. The full license is in
# the file COPYING, distributed as part of this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import absolute_import
from zmq.eventloop import ioloop
from IPython.kernel.restarter import KernelRestarter
from IPython.utils.traitlets import (
Instance,
)
#-----------------------------------------------------------------------------
# Code
#-----------------------------------------------------------------------------
class IOLoopKernelRestarter(KernelRestarter):
"""Monitor and autorestart a kernel."""
loop = Instance('zmq.eventloop.ioloop.IOLoop', allow_none=False)
def _loop_default(self):
return ioloop.IOLoop.instance()
_pcallback = None
def start(self):
"""Start the polling of the kernel."""
if self._pcallback is None:
self._pcallback = ioloop.PeriodicCallback(
self.poll, 1000*self.time_to_dead, self.loop
)
self._pcallback.start()
def stop(self):
"""Stop the kernel polling."""
if self._pcallback is not None:
self._pcallback.stop()
self._pcallback = None