##// END OF EJS Templates
restart channels on kernel restart...
restart channels on kernel restart generally not necessary, but sometimes the kernel connection can be dirty. We have only seen this by starting a qtconsole via %qtconsole, then killing the kernel, at which point the original notebook's connection (at the zmq level) is never restored to the new kernel at the same endpoint. It's weird, and probably a zmq bug, but a simple reconnect seems to solve it.

File last commit:

r7787:28b538a9
r10335:652de7b3
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ipythonx.py
118 lines | 3.3 KiB | text/x-python | PythonLexer
"""
Entry point for a simple application giving a graphical frontend to
ipython.
"""
try:
import wx
except ImportError as e:
e.args[0] = """%s
________________________________________________________________________________
You need wxPython to run this application.
""" % e.args[0]
raise e
from wx_frontend import WxController
import __builtin__
class IPythonXController(WxController):
""" Sub class of WxController that adds some application-specific
bindings.
"""
debug = False
def __init__(self, *args, **kwargs):
WxController.__init__(self, *args, **kwargs)
self.ipython0.ask_exit = self.do_exit
# Scroll to top
maxrange = self.GetScrollRange(wx.VERTICAL)
self.ScrollLines(-maxrange)
def _on_key_down(self, event, skip=True):
# Intercept Ctrl-D to quit
if event.KeyCode == ord('D') and event.ControlDown() and \
self.input_buffer == '' and \
self._input_state == 'readline':
wx.CallAfter(self.ask_exit)
else:
WxController._on_key_down(self, event, skip=skip)
def ask_exit(self):
""" Ask the user whether to exit.
"""
self._input_state = 'subprocess'
self.write('\n', refresh=False)
self.capture_output()
self.ipython0.exit()
self.release_output()
if not self.ipython0.exit_now:
wx.CallAfter(self.new_prompt,
self.input_prompt_template.substitute(
number=self.last_result['number'] + 1))
else:
wx.CallAfter(wx.GetApp().Exit)
self.write('Exiting ...', refresh=False)
def do_exit(self):
""" Exits the interpreter, kills the windows.
"""
WxController.do_exit(self)
self.release_output()
wx.CallAfter(wx.Exit)
class IPythonX(wx.Frame):
""" Main frame of the IPythonX app.
"""
def __init__(self, parent, id, title, debug=False):
wx.Frame.__init__(self, parent, id, title, size=(300,250))
self._sizer = wx.BoxSizer(wx.VERTICAL)
self.shell = IPythonXController(self, debug=debug)
self._sizer.Add(self.shell, 1, wx.EXPAND)
self.SetSizer(self._sizer)
self.SetAutoLayout(1)
self.Show(True)
wx.EVT_CLOSE(self, self.on_close)
def on_close(self, event):
""" Called on closing the windows.
Stops the event loop, to close all the child windows.
"""
wx.CallAfter(wx.Exit)
def main():
from optparse import OptionParser
usage = """usage: %prog [options]
Simple graphical frontend to IPython, using WxWidgets."""
parser = OptionParser(usage=usage)
parser.add_option("-d", "--debug",
action="store_true", dest="debug", default=False,
help="Enable debug message for the wx frontend.")
options, args = parser.parse_args()
# Clear the options, to avoid having the ipython0 instance complain
import sys
sys.argv = sys.argv[:1]
app = wx.PySimpleApp()
frame = IPythonX(None, wx.ID_ANY, 'IPythonX', debug=options.debug)
frame.shell.SetFocus()
frame.shell.app = app
frame.SetSize((680, 460))
app.MainLoop()
if __name__ == '__main__':
main()