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""" A minimal application using the ZMQ-based terminal IPython frontend.
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This is not a complete console app, as subprocess will not be able to receive
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input, there is no real readline support, among other limitations.
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Authors:
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* Min RK
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* Paul Ivanov
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"""
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#-----------------------------------------------------------------------------
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# Imports
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#-----------------------------------------------------------------------------
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import signal
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import sys
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import time
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from IPython.frontend.terminal.ipapp import TerminalIPythonApp
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from IPython.utils.traitlets import (
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Dict, List, Unicode, Int, CaselessStrEnum, CBool, Any
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)
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from IPython.zmq.ipkernel import IPKernelApp
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from IPython.zmq.session import Session, default_secure
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from IPython.zmq.zmqshell import ZMQInteractiveShell
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from IPython.frontend.kernelmixinapp import (
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IPythonMixinConsoleApp, app_aliases, app_flags
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)
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from IPython.frontend.zmqterminal.interactiveshell import ZMQTerminalInteractiveShell
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#-----------------------------------------------------------------------------
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# Globals
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#-----------------------------------------------------------------------------
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_examples = """
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ipython console # start the ZMQ-based console
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ipython console --pylab # start with pylab plotting mode
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"""
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#-----------------------------------------------------------------------------
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# Flags and Aliases
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#-----------------------------------------------------------------------------
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# XXX: the app_flags should really be flags from the mixin
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flags = dict(app_flags)
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frontend_flags = { }
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flags.update(frontend_flags)
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frontend_flags = frontend_flags.keys()
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aliases = dict(app_aliases)
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frontend_aliases = dict()
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aliases.update(frontend_aliases)
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#-----------------------------------------------------------------------------
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# Classes
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#-----------------------------------------------------------------------------
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class ZMQTerminalIPythonApp(TerminalIPythonApp, IPythonMixinConsoleApp):
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"""Start a terminal frontend to the IPython zmq kernel."""
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classes = List([IPKernelApp, ZMQTerminalInteractiveShell])
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flags = Dict(flags)
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aliases = Dict(aliases)
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def parse_command_line(self, argv=None):
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super(ZMQTerminalIPythonApp, self).parse_command_line(argv)
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IPythonMixinConsoleApp.parse_command_line(self,argv)
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self.swallow_args(frontend_aliases,frontend_flags,argv=argv)
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def init_shell(self):
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IPythonMixinConsoleApp.initialize(self)
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#self.init_kernel_manager()
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self.shell = ZMQTerminalInteractiveShell.instance(config=self.config,
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display_banner=False, profile_dir=self.profile_dir,
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ipython_dir=self.ipython_dir, kernel_manager=self.kernel_manager)
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def handle_sigint(self, *args):
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self.shell.write('KeyboardInterrupt\n')
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self.kernel_manager.interrupt_kernel()
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def init_code(self):
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# no-op in the frontend, code gets run in the backend
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pass
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def launch_new_instance():
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"""Create and run a full blown IPython instance"""
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app = ZMQTerminalIPythonApp.instance()
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app.initialize()
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app.start()
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if __name__ == '__main__':
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launch_new_instance()
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