1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
"""A kernel manager for in-process kernels."""
#-----------------------------------------------------------------------------
# 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 IPython.utils.traitlets import Instance, DottedObjectName
from IPython.kernel.managerabc import KernelManagerABC
from IPython.kernel.manager import KernelManager
#-----------------------------------------------------------------------------
# Main kernel manager class
#-----------------------------------------------------------------------------
class InProcessKernelManager(KernelManager):
"""A manager for an in-process kernel.
This class implements the interface of
`IPython.kernel.kernelmanagerabc.KernelManagerABC` and allows
(asynchronous) frontends to be used seamlessly with an in-process kernel.
See `IPython.kernel.kernelmanager.KernelManager` for docstrings.
"""
# The kernel process with which the KernelManager is communicating.
kernel = Instance('IPython.kernel.inprocess.ipkernel.InProcessKernel')
# the client class for KM.client() shortcut
client_class = DottedObjectName('IPython.kernel.inprocess.BlockingInProcessKernelClient')
#--------------------------------------------------------------------------
# Kernel management methods
#--------------------------------------------------------------------------
def start_kernel(self, **kwds):
from IPython.kernel.inprocess.ipkernel import InProcessKernel
self.kernel = InProcessKernel()
def shutdown_kernel(self):
self._kill_kernel()
def restart_kernel(self, now=False, **kwds):
self.shutdown_kernel()
self.start_kernel(**kwds)
@property
def has_kernel(self):
return self.kernel is not None
def _kill_kernel(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.")
def is_alive(self):
return self.kernel is not None
def client(self, **kwargs):
kwargs['kernel'] = self.kernel
return super(InProcessKernelManager, self).client(**kwargs)
#-----------------------------------------------------------------------------
# ABC Registration
#-----------------------------------------------------------------------------
KernelManagerABC.register(InProcessKernelManager)
|
