##// END OF EJS Templates
move IPython.consoleapp to jupyter_client
Min RK -
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@@ -0,0 +1,331 b''
1 """ A minimal application base mixin for all ZMQ based IPython frontends.
2
3 This is not a complete console app, as subprocess will not be able to receive
4 input, there is no real readline support, among other limitations. This is a
5 refactoring of what used to be the IPython/qt/console/qtconsoleapp.py
6 """
7 # Copyright (c) IPython Development Team.
8 # Distributed under the terms of the Modified BSD License.
9
10 import atexit
11 import os
12 import signal
13 import sys
14 import uuid
15
16
17 from IPython.config.application import boolean_flag
18 from IPython.core.profiledir import ProfileDir
19 from IPython.kernel.blocking import BlockingKernelClient
20 from IPython.kernel import KernelManager
21 from IPython.kernel import tunnel_to_kernel, find_connection_file
22 from IPython.kernel.kernelspec import NoSuchKernel
23 from IPython.utils.path import filefind
24 from IPython.utils.traitlets import (
25 Dict, List, Unicode, CUnicode, CBool, Any
26 )
27 from IPython.kernel.zmq.session import Session
28 from IPython.kernel import connect
29 ConnectionFileMixin = connect.ConnectionFileMixin
30
31 from IPython.utils.localinterfaces import localhost
32
33 #-----------------------------------------------------------------------------
34 # Aliases and Flags
35 #-----------------------------------------------------------------------------
36
37 flags = {}
38
39 # the flags that are specific to the frontend
40 # these must be scrubbed before being passed to the kernel,
41 # or it will raise an error on unrecognized flags
42 app_flags = {
43 'existing' : ({'IPythonConsoleApp' : {'existing' : 'kernel*.json'}},
44 "Connect to an existing kernel. If no argument specified, guess most recent"),
45 }
46 app_flags.update(boolean_flag(
47 'confirm-exit', 'IPythonConsoleApp.confirm_exit',
48 """Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
49 to force a direct exit without any confirmation.
50 """,
51 """Don't prompt the user when exiting. This will terminate the kernel
52 if it is owned by the frontend, and leave it alive if it is external.
53 """
54 ))
55 flags.update(app_flags)
56
57 aliases = {}
58
59 # also scrub aliases from the frontend
60 app_aliases = dict(
61 ip = 'IPythonConsoleApp.ip',
62 transport = 'IPythonConsoleApp.transport',
63 hb = 'IPythonConsoleApp.hb_port',
64 shell = 'IPythonConsoleApp.shell_port',
65 iopub = 'IPythonConsoleApp.iopub_port',
66 stdin = 'IPythonConsoleApp.stdin_port',
67 existing = 'IPythonConsoleApp.existing',
68 f = 'IPythonConsoleApp.connection_file',
69
70 kernel = 'IPythonConsoleApp.kernel_name',
71
72 ssh = 'IPythonConsoleApp.sshserver',
73 )
74 aliases.update(app_aliases)
75
76 #-----------------------------------------------------------------------------
77 # Classes
78 #-----------------------------------------------------------------------------
79
80 classes = [KernelManager, ProfileDir, Session]
81
82 class IPythonConsoleApp(ConnectionFileMixin):
83 name = 'ipython-console-mixin'
84
85 description = """
86 The IPython Mixin Console.
87
88 This class contains the common portions of console client (QtConsole,
89 ZMQ-based terminal console, etc). It is not a full console, in that
90 launched terminal subprocesses will not be able to accept input.
91
92 The Console using this mixing supports various extra features beyond
93 the single-process Terminal IPython shell, such as connecting to
94 existing kernel, via:
95
96 ipython <appname> --existing
97
98 as well as tunnel via SSH
99
100 """
101
102 classes = classes
103 flags = Dict(flags)
104 aliases = Dict(aliases)
105 kernel_manager_class = KernelManager
106 kernel_client_class = BlockingKernelClient
107
108 kernel_argv = List(Unicode)
109 # frontend flags&aliases to be stripped when building kernel_argv
110 frontend_flags = Any(app_flags)
111 frontend_aliases = Any(app_aliases)
112
113 # create requested profiles by default, if they don't exist:
114 auto_create = CBool(True)
115 # connection info:
116
117 sshserver = Unicode('', config=True,
118 help="""The SSH server to use to connect to the kernel.""")
119 sshkey = Unicode('', config=True,
120 help="""Path to the ssh key to use for logging in to the ssh server.""")
121
122 def _connection_file_default(self):
123 return 'kernel-%i.json' % os.getpid()
124
125 existing = CUnicode('', config=True,
126 help="""Connect to an already running kernel""")
127
128 kernel_name = Unicode('python', config=True,
129 help="""The name of the default kernel to start.""")
130
131 confirm_exit = CBool(True, config=True,
132 help="""
133 Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
134 to force a direct exit without any confirmation.""",
135 )
136
137 def build_kernel_argv(self, argv=None):
138 """build argv to be passed to kernel subprocess
139
140 Override in subclasses if any args should be passed to the kernel
141 """
142 self.kernel_argv = self.extra_args
143
144 def init_connection_file(self):
145 """find the connection file, and load the info if found.
146
147 The current working directory and the current profile's security
148 directory will be searched for the file if it is not given by
149 absolute path.
150
151 When attempting to connect to an existing kernel and the `--existing`
152 argument does not match an existing file, it will be interpreted as a
153 fileglob, and the matching file in the current profile's security dir
154 with the latest access time will be used.
155
156 After this method is called, self.connection_file contains the *full path*
157 to the connection file, never just its name.
158 """
159 if self.existing:
160 try:
161 cf = find_connection_file(self.existing)
162 except Exception:
163 self.log.critical("Could not find existing kernel connection file %s", self.existing)
164 self.exit(1)
165 self.log.debug("Connecting to existing kernel: %s" % cf)
166 self.connection_file = cf
167 else:
168 # not existing, check if we are going to write the file
169 # and ensure that self.connection_file is a full path, not just the shortname
170 try:
171 cf = find_connection_file(self.connection_file)
172 except Exception:
173 # file might not exist
174 if self.connection_file == os.path.basename(self.connection_file):
175 # just shortname, put it in security dir
176 cf = os.path.join(self.profile_dir.security_dir, self.connection_file)
177 else:
178 cf = self.connection_file
179 self.connection_file = cf
180 try:
181 self.connection_file = filefind(self.connection_file, ['.', self.profile_dir.security_dir])
182 except IOError:
183 self.log.debug("Connection File not found: %s", self.connection_file)
184 return
185
186 # should load_connection_file only be used for existing?
187 # as it is now, this allows reusing ports if an existing
188 # file is requested
189 try:
190 self.load_connection_file()
191 except Exception:
192 self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True)
193 self.exit(1)
194
195 def init_ssh(self):
196 """set up ssh tunnels, if needed."""
197 if not self.existing or (not self.sshserver and not self.sshkey):
198 return
199 self.load_connection_file()
200
201 transport = self.transport
202 ip = self.ip
203
204 if transport != 'tcp':
205 self.log.error("Can only use ssh tunnels with TCP sockets, not %s", transport)
206 sys.exit(-1)
207
208 if self.sshkey and not self.sshserver:
209 # specifying just the key implies that we are connecting directly
210 self.sshserver = ip
211 ip = localhost()
212
213 # build connection dict for tunnels:
214 info = dict(ip=ip,
215 shell_port=self.shell_port,
216 iopub_port=self.iopub_port,
217 stdin_port=self.stdin_port,
218 hb_port=self.hb_port
219 )
220
221 self.log.info("Forwarding connections to %s via %s"%(ip, self.sshserver))
222
223 # tunnels return a new set of ports, which will be on localhost:
224 self.ip = localhost()
225 try:
226 newports = tunnel_to_kernel(info, self.sshserver, self.sshkey)
227 except:
228 # even catch KeyboardInterrupt
229 self.log.error("Could not setup tunnels", exc_info=True)
230 self.exit(1)
231
232 self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports
233
234 cf = self.connection_file
235 base,ext = os.path.splitext(cf)
236 base = os.path.basename(base)
237 self.connection_file = os.path.basename(base)+'-ssh'+ext
238 self.log.info("To connect another client via this tunnel, use:")
239 self.log.info("--existing %s" % self.connection_file)
240
241 def _new_connection_file(self):
242 cf = ''
243 while not cf:
244 # we don't need a 128b id to distinguish kernels, use more readable
245 # 48b node segment (12 hex chars). Users running more than 32k simultaneous
246 # kernels can subclass.
247 ident = str(uuid.uuid4()).split('-')[-1]
248 cf = os.path.join(self.profile_dir.security_dir, 'kernel-%s.json' % ident)
249 # only keep if it's actually new. Protect against unlikely collision
250 # in 48b random search space
251 cf = cf if not os.path.exists(cf) else ''
252 return cf
253
254 def init_kernel_manager(self):
255 # Don't let Qt or ZMQ swallow KeyboardInterupts.
256 if self.existing:
257 self.kernel_manager = None
258 return
259 signal.signal(signal.SIGINT, signal.SIG_DFL)
260
261 # Create a KernelManager and start a kernel.
262 try:
263 self.kernel_manager = self.kernel_manager_class(
264 ip=self.ip,
265 session=self.session,
266 transport=self.transport,
267 shell_port=self.shell_port,
268 iopub_port=self.iopub_port,
269 stdin_port=self.stdin_port,
270 hb_port=self.hb_port,
271 connection_file=self.connection_file,
272 kernel_name=self.kernel_name,
273 parent=self,
274 ipython_dir=self.ipython_dir,
275 )
276 except NoSuchKernel:
277 self.log.critical("Could not find kernel %s", self.kernel_name)
278 self.exit(1)
279
280 self.kernel_manager.client_factory = self.kernel_client_class
281 # FIXME: remove special treatment of IPython kernels
282 kwargs = {}
283 if self.kernel_manager.ipython_kernel:
284 kwargs['extra_arguments'] = self.kernel_argv
285 self.kernel_manager.start_kernel(**kwargs)
286 atexit.register(self.kernel_manager.cleanup_ipc_files)
287
288 if self.sshserver:
289 # ssh, write new connection file
290 self.kernel_manager.write_connection_file()
291
292 # in case KM defaults / ssh writing changes things:
293 km = self.kernel_manager
294 self.shell_port=km.shell_port
295 self.iopub_port=km.iopub_port
296 self.stdin_port=km.stdin_port
297 self.hb_port=km.hb_port
298 self.connection_file = km.connection_file
299
300 atexit.register(self.kernel_manager.cleanup_connection_file)
301
302 def init_kernel_client(self):
303 if self.kernel_manager is not None:
304 self.kernel_client = self.kernel_manager.client()
305 else:
306 self.kernel_client = self.kernel_client_class(
307 session=self.session,
308 ip=self.ip,
309 transport=self.transport,
310 shell_port=self.shell_port,
311 iopub_port=self.iopub_port,
312 stdin_port=self.stdin_port,
313 hb_port=self.hb_port,
314 connection_file=self.connection_file,
315 parent=self,
316 )
317
318 self.kernel_client.start_channels()
319
320
321
322 def initialize(self, argv=None):
323 """
324 Classes which mix this class in should call:
325 IPythonConsoleApp.initialize(self,argv)
326 """
327 self.init_connection_file()
328 self.init_ssh()
329 self.init_kernel_manager()
330 self.init_kernel_client()
331
@@ -1,331 +1,13 b''
1 """ A minimal application base mixin for all ZMQ based IPython frontends.
1 """
2
2 Shim to maintain backwards compatibility with old IPython.consoleapp imports.
3 This is not a complete console app, as subprocess will not be able to receive
4 input, there is no real readline support, among other limitations. This is a
5 refactoring of what used to be the IPython/qt/console/qtconsoleapp.py
6 """
3 """
7 # Copyright (c) IPython Development Team.
4 # Copyright (c) IPython Development Team.
8 # Distributed under the terms of the Modified BSD License.
5 # Distributed under the terms of the Modified BSD License.
9
6
10 import atexit
11 import os
12 import signal
13 import sys
7 import sys
14 import uuid
8 from warnings import warn
15
16
17 from IPython.config.application import boolean_flag
18 from IPython.core.profiledir import ProfileDir
19 from IPython.kernel.blocking import BlockingKernelClient
20 from IPython.kernel import KernelManager
21 from IPython.kernel import tunnel_to_kernel, find_connection_file
22 from IPython.kernel.kernelspec import NoSuchKernel
23 from IPython.utils.path import filefind
24 from IPython.utils.traitlets import (
25 Dict, List, Unicode, CUnicode, CBool, Any
26 )
27 from IPython.kernel.zmq.session import Session
28 from IPython.kernel import connect
29 ConnectionFileMixin = connect.ConnectionFileMixin
30
31 from IPython.utils.localinterfaces import localhost
32
33 #-----------------------------------------------------------------------------
34 # Aliases and Flags
35 #-----------------------------------------------------------------------------
36
37 flags = {}
38
39 # the flags that are specific to the frontend
40 # these must be scrubbed before being passed to the kernel,
41 # or it will raise an error on unrecognized flags
42 app_flags = {
43 'existing' : ({'IPythonConsoleApp' : {'existing' : 'kernel*.json'}},
44 "Connect to an existing kernel. If no argument specified, guess most recent"),
45 }
46 app_flags.update(boolean_flag(
47 'confirm-exit', 'IPythonConsoleApp.confirm_exit',
48 """Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
49 to force a direct exit without any confirmation.
50 """,
51 """Don't prompt the user when exiting. This will terminate the kernel
52 if it is owned by the frontend, and leave it alive if it is external.
53 """
54 ))
55 flags.update(app_flags)
56
57 aliases = {}
58
59 # also scrub aliases from the frontend
60 app_aliases = dict(
61 ip = 'IPythonConsoleApp.ip',
62 transport = 'IPythonConsoleApp.transport',
63 hb = 'IPythonConsoleApp.hb_port',
64 shell = 'IPythonConsoleApp.shell_port',
65 iopub = 'IPythonConsoleApp.iopub_port',
66 stdin = 'IPythonConsoleApp.stdin_port',
67 existing = 'IPythonConsoleApp.existing',
68 f = 'IPythonConsoleApp.connection_file',
69
70 kernel = 'IPythonConsoleApp.kernel_name',
71
72 ssh = 'IPythonConsoleApp.sshserver',
73 )
74 aliases.update(app_aliases)
75
76 #-----------------------------------------------------------------------------
77 # Classes
78 #-----------------------------------------------------------------------------
79
80 classes = [KernelManager, ProfileDir, Session]
81
82 class IPythonConsoleApp(ConnectionFileMixin):
83 name = 'ipython-console-mixin'
84
85 description = """
86 The IPython Mixin Console.
87
88 This class contains the common portions of console client (QtConsole,
89 ZMQ-based terminal console, etc). It is not a full console, in that
90 launched terminal subprocesses will not be able to accept input.
91
92 The Console using this mixing supports various extra features beyond
93 the single-process Terminal IPython shell, such as connecting to
94 existing kernel, via:
95
96 ipython <appname> --existing
97
98 as well as tunnel via SSH
99
100 """
101
102 classes = classes
103 flags = Dict(flags)
104 aliases = Dict(aliases)
105 kernel_manager_class = KernelManager
106 kernel_client_class = BlockingKernelClient
107
108 kernel_argv = List(Unicode)
109 # frontend flags&aliases to be stripped when building kernel_argv
110 frontend_flags = Any(app_flags)
111 frontend_aliases = Any(app_aliases)
112
113 # create requested profiles by default, if they don't exist:
114 auto_create = CBool(True)
115 # connection info:
116
117 sshserver = Unicode('', config=True,
118 help="""The SSH server to use to connect to the kernel.""")
119 sshkey = Unicode('', config=True,
120 help="""Path to the ssh key to use for logging in to the ssh server.""")
121
122 def _connection_file_default(self):
123 return 'kernel-%i.json' % os.getpid()
124
125 existing = CUnicode('', config=True,
126 help="""Connect to an already running kernel""")
127
128 kernel_name = Unicode('python', config=True,
129 help="""The name of the default kernel to start.""")
130
131 confirm_exit = CBool(True, config=True,
132 help="""
133 Set to display confirmation dialog on exit. You can always use 'exit' or 'quit',
134 to force a direct exit without any confirmation.""",
135 )
136
137 def build_kernel_argv(self, argv=None):
138 """build argv to be passed to kernel subprocess
139
140 Override in subclasses if any args should be passed to the kernel
141 """
142 self.kernel_argv = self.extra_args
143
144 def init_connection_file(self):
145 """find the connection file, and load the info if found.
146
147 The current working directory and the current profile's security
148 directory will be searched for the file if it is not given by
149 absolute path.
150
151 When attempting to connect to an existing kernel and the `--existing`
152 argument does not match an existing file, it will be interpreted as a
153 fileglob, and the matching file in the current profile's security dir
154 with the latest access time will be used.
155
156 After this method is called, self.connection_file contains the *full path*
157 to the connection file, never just its name.
158 """
159 if self.existing:
160 try:
161 cf = find_connection_file(self.existing)
162 except Exception:
163 self.log.critical("Could not find existing kernel connection file %s", self.existing)
164 self.exit(1)
165 self.log.debug("Connecting to existing kernel: %s" % cf)
166 self.connection_file = cf
167 else:
168 # not existing, check if we are going to write the file
169 # and ensure that self.connection_file is a full path, not just the shortname
170 try:
171 cf = find_connection_file(self.connection_file)
172 except Exception:
173 # file might not exist
174 if self.connection_file == os.path.basename(self.connection_file):
175 # just shortname, put it in security dir
176 cf = os.path.join(self.profile_dir.security_dir, self.connection_file)
177 else:
178 cf = self.connection_file
179 self.connection_file = cf
180 try:
181 self.connection_file = filefind(self.connection_file, ['.', self.profile_dir.security_dir])
182 except IOError:
183 self.log.debug("Connection File not found: %s", self.connection_file)
184 return
185
186 # should load_connection_file only be used for existing?
187 # as it is now, this allows reusing ports if an existing
188 # file is requested
189 try:
190 self.load_connection_file()
191 except Exception:
192 self.log.error("Failed to load connection file: %r", self.connection_file, exc_info=True)
193 self.exit(1)
194
195 def init_ssh(self):
196 """set up ssh tunnels, if needed."""
197 if not self.existing or (not self.sshserver and not self.sshkey):
198 return
199 self.load_connection_file()
200
201 transport = self.transport
202 ip = self.ip
203
204 if transport != 'tcp':
205 self.log.error("Can only use ssh tunnels with TCP sockets, not %s", transport)
206 sys.exit(-1)
207
208 if self.sshkey and not self.sshserver:
209 # specifying just the key implies that we are connecting directly
210 self.sshserver = ip
211 ip = localhost()
212
213 # build connection dict for tunnels:
214 info = dict(ip=ip,
215 shell_port=self.shell_port,
216 iopub_port=self.iopub_port,
217 stdin_port=self.stdin_port,
218 hb_port=self.hb_port
219 )
220
221 self.log.info("Forwarding connections to %s via %s"%(ip, self.sshserver))
222
223 # tunnels return a new set of ports, which will be on localhost:
224 self.ip = localhost()
225 try:
226 newports = tunnel_to_kernel(info, self.sshserver, self.sshkey)
227 except:
228 # even catch KeyboardInterrupt
229 self.log.error("Could not setup tunnels", exc_info=True)
230 self.exit(1)
231
232 self.shell_port, self.iopub_port, self.stdin_port, self.hb_port = newports
233
234 cf = self.connection_file
235 base,ext = os.path.splitext(cf)
236 base = os.path.basename(base)
237 self.connection_file = os.path.basename(base)+'-ssh'+ext
238 self.log.info("To connect another client via this tunnel, use:")
239 self.log.info("--existing %s" % self.connection_file)
240
241 def _new_connection_file(self):
242 cf = ''
243 while not cf:
244 # we don't need a 128b id to distinguish kernels, use more readable
245 # 48b node segment (12 hex chars). Users running more than 32k simultaneous
246 # kernels can subclass.
247 ident = str(uuid.uuid4()).split('-')[-1]
248 cf = os.path.join(self.profile_dir.security_dir, 'kernel-%s.json' % ident)
249 # only keep if it's actually new. Protect against unlikely collision
250 # in 48b random search space
251 cf = cf if not os.path.exists(cf) else ''
252 return cf
253
254 def init_kernel_manager(self):
255 # Don't let Qt or ZMQ swallow KeyboardInterupts.
256 if self.existing:
257 self.kernel_manager = None
258 return
259 signal.signal(signal.SIGINT, signal.SIG_DFL)
260
261 # Create a KernelManager and start a kernel.
262 try:
263 self.kernel_manager = self.kernel_manager_class(
264 ip=self.ip,
265 session=self.session,
266 transport=self.transport,
267 shell_port=self.shell_port,
268 iopub_port=self.iopub_port,
269 stdin_port=self.stdin_port,
270 hb_port=self.hb_port,
271 connection_file=self.connection_file,
272 kernel_name=self.kernel_name,
273 parent=self,
274 ipython_dir=self.ipython_dir,
275 )
276 except NoSuchKernel:
277 self.log.critical("Could not find kernel %s", self.kernel_name)
278 self.exit(1)
279
280 self.kernel_manager.client_factory = self.kernel_client_class
281 # FIXME: remove special treatment of IPython kernels
282 kwargs = {}
283 if self.kernel_manager.ipython_kernel:
284 kwargs['extra_arguments'] = self.kernel_argv
285 self.kernel_manager.start_kernel(**kwargs)
286 atexit.register(self.kernel_manager.cleanup_ipc_files)
287
288 if self.sshserver:
289 # ssh, write new connection file
290 self.kernel_manager.write_connection_file()
291
292 # in case KM defaults / ssh writing changes things:
293 km = self.kernel_manager
294 self.shell_port=km.shell_port
295 self.iopub_port=km.iopub_port
296 self.stdin_port=km.stdin_port
297 self.hb_port=km.hb_port
298 self.connection_file = km.connection_file
299
300 atexit.register(self.kernel_manager.cleanup_connection_file)
301
302 def init_kernel_client(self):
303 if self.kernel_manager is not None:
304 self.kernel_client = self.kernel_manager.client()
305 else:
306 self.kernel_client = self.kernel_client_class(
307 session=self.session,
308 ip=self.ip,
309 transport=self.transport,
310 shell_port=self.shell_port,
311 iopub_port=self.iopub_port,
312 stdin_port=self.stdin_port,
313 hb_port=self.hb_port,
314 connection_file=self.connection_file,
315 parent=self,
316 )
317
318 self.kernel_client.start_channels()
319
320
321
9
322 def initialize(self, argv=None):
10 warn("The `IPython.consoleapp` package has been deprecated. "
323 """
11 "You should import from jupyter_client.consoleapp instead.")
324 Classes which mix this class in should call:
325 IPythonConsoleApp.initialize(self,argv)
326 """
327 self.init_connection_file()
328 self.init_ssh()
329 self.init_kernel_manager()
330 self.init_kernel_client()
331
12
13 from jupyter_client.consoleapp import *
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