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Shut down kernels in parallel...
Shut down kernels in parallel When stopping the notebook server, it currently sends a shutdown request to each kernel and then waits for the process to finish. This can be slow if you have several kernels running. This makes it issues all the shutdown requests before waiting on the processes, so shutdown happens in parallel. KernelManager (and MultiKernelManager) gain three new public API methods to allow this: * request_shutdown (promoted from a private method) * wait_shutdown (refactored out of shutdown_kernel) * cleanup (refactored out of shutdown_kernel)

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widget_selectioncontainer.py
58 lines | 1.8 KiB | text/x-python | PythonLexer
/ IPython / html / widgets / widget_selectioncontainer.py
"""SelectionContainerWidget class.
Represents a multipage container that can be used to group other widgets into
pages.
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2013, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from .widget_container import ContainerWidget
from IPython.utils.traitlets import Unicode, Dict, CInt
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
class _SelectionContainerWidget(ContainerWidget):
_titles = Dict(help="Titles of the pages", sync=True)
selected_index = CInt(0, sync=True)
# Public methods
def set_title(self, index, title):
"""Sets the title of a container page.
Parameters
----------
index : int
Index of the container page
title : unicode
New title"""
self._titles[index] = title
self.send_state('_titles')
def get_title(self, index):
"""Gets the title of a container pages.
Parameters
----------
index : int
Index of the container page"""
if index in self._titles:
return self._titles[index]
else:
return None
class AccordionWidget(_SelectionContainerWidget):
_view_name = Unicode('AccordionView', sync=True)
class TabWidget(_SelectionContainerWidget):
_view_name = Unicode('TabView', sync=True)