self.start_kernel(**kwds)
@property
def has_kernel(self):
return self.kernel is not None
def _kill_kernel(self):
self.kernel.frontends.remove(self)
self.kernel = None
def interrupt_kernel(self):
raise NotImplementedError("Cannot interrupt in-process kernel.")
def signal_kernel(self, signum):
raise NotImplementedError("Cannot signal in-process kernel.")
@property
def is_alive(self):
return True
#-----------------------------------------------------------------------------
# ABC Registration
#-----------------------------------------------------------------------------
ShellChannelABC.register(InProcessShellChannel)
IOPubChannelABC.register(InProcessIOPubChannel)
HBChannelABC.register(InProcessHBChannel)
StdInChannelABC.register(InProcessStdInChannel)
KernelManagerABC.register(InProcessKernelManager)
raise RuntimeError("Cannot signal kernel. No kernel is running!")
@property
def is_alive(self):
"""Is the kernel process still running?"""
if self.has_kernel:
if self.kernel.poll() is None:
return True
else:
return False
elif self._hb_channel is not None:
# We didn't start the kernel with this KernelManager so we
# use the heartbeat.
return self._hb_channel.is_beating()
else:
# no heartbeat and not local, we can't tell if it's running,
# so naively return True
return True
#-----------------------------------------------------------------------------
# ABC Registration
#-----------------------------------------------------------------------------
ShellChannelABC.register(ShellChannel)
IOPubChannelABC.register(IOPubChannel)
HBChannelABC.register(HBChannel)
StdInChannelABC.register(StdInChannel)
KernelManagerABC.register(KernelManager)