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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.
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manager.py
53 lines | 1.6 KiB | text/x-python | PythonLexer
/ IPython / qt / manager.py
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""" Defines a KernelClient that provides signals and slots.
"""
from IPython.external.qt import QtCore
# Local imports
from IPython.utils.traitlets import Bool, DottedObjectName
from IPython.kernel import KernelManager
from IPython.kernel.restarter import KernelRestarter
from .kernel_mixins import QtKernelManagerMixin, QtKernelRestarterMixin
class QtKernelRestarter(KernelRestarter, QtKernelRestarterMixin):
def start(self):
if self._timer is None:
self._timer = QtCore.QTimer()
self._timer.timeout.connect(self.poll)
self._timer.start(self.time_to_dead * 1000)
def stop(self):
self._timer.stop()
def poll(self):
super(QtKernelRestarter, self).poll()
class QtKernelManager(KernelManager, QtKernelManagerMixin):
"""A KernelManager with Qt signals for restart"""
client_class = DottedObjectName('IPython.qt.client.QtKernelClient')
autorestart = Bool(True, config=True)
def start_restarter(self):
if self.autorestart and self.has_kernel:
if self._restarter is None:
self._restarter = QtKernelRestarter(
kernel_manager=self,
parent=self,
log=self.log,
)
self._restarter.add_callback(self._handle_kernel_restarted)
self._restarter.start()
def stop_restarter(self):
if self.autorestart:
if self._restarter is not None:
self._restarter.stop()
def _handle_kernel_restarted(self):
self.kernel_restarted.emit()