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Add explicit comment about disabled code in importstring....
Add explicit comment about disabled code in importstring. This lets us know the deactivated code is meant for eventual deletion (the replacement was written by T. Kluyver in his 2to3 preparation work, we just need to be sure we have no problems with it in more testing).

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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, 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()