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"""Abstract base class for kernel managers."""

#-----------------------------------------------------------------------------

# 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.

#-----------------------------------------------------------------------------

import abc

from IPython.utils.py3compat import with_metaclass

class KernelManagerABC(with_metaclass(abc.ABCMeta, object)):

"""KernelManager ABC.

The docstrings for this class can be found in the base implementation:

`IPython.kernel.kernelmanager.KernelManager`

"""

@abc.abstractproperty

def kernel(self):

pass

@abc.abstractproperty

def shell_channel_class(self):

pass

@abc.abstractproperty

def iopub_channel_class(self):

pass

@abc.abstractproperty

def hb_channel_class(self):

pass

@abc.abstractproperty

def stdin_channel_class(self):

pass

#--------------------------------------------------------------------------

# Channel management methods

#--------------------------------------------------------------------------

@abc.abstractmethod

def start_channels(self, shell=True, iopub=True, stdin=True, hb=True):

pass

@abc.abstractmethod

def stop_channels(self):

pass

@abc.abstractproperty

def channels_running(self):

pass

@abc.abstractproperty

def shell_channel(self):

pass

@abc.abstractproperty

def iopub_channel(self):

pass

@abc.abstractproperty

def stdin_channel(self):

pass

@abc.abstractproperty

def hb_channel(self):

pass

#--------------------------------------------------------------------------

# Kernel management

#--------------------------------------------------------------------------

@abc.abstractmethod

def start_kernel(self, **kw):

pass

@abc.abstractmethod

def shutdown_kernel(self, now=False, restart=False):

pass

@abc.abstractmethod

def restart_kernel(self, now=False, **kw):

pass

@abc.abstractproperty

def has_kernel(self):

pass

@abc.abstractmethod

def interrupt_kernel(self):

pass

@abc.abstractmethod

def signal_kernel(self, signum):

pass

@abc.abstractmethod

def is_alive(self):

pass