wxWidgets/wxPython/wx/py/PyCrust.py

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"""PyCrust is a python shell and namespace browser application."""
# The next two lines, and the other code below that makes use of
# ``__main__`` and ``original``, serve the purpose of cleaning up the
# main namespace to look as much as possible like the regular Python
# shell environment.
import __main__
original = __main__.__dict__.keys()
__author__ = "Patrick K. O'Brien <pobrien@orbtech.com>"
__cvsid__ = "$Id$"
__revision__ = "$Revision$"[11:-2]
import wx
class App(wx.App):
"""PyCrust standalone application."""
def OnInit(self):
import wx
from wx import py
wx.InitAllImageHandlers()
self.frame = py.crust.CrustFrame()
self.frame.SetSize((800, 600))
self.frame.Show()
self.SetTopWindow(self.frame)
return True
'''
The main() function needs to handle being imported, such as with the
pycrust script that wxPython installs:
#!/usr/bin/env python
from wx.py.PyCrust import main
main()
'''
def main():
"""The main function for the PyCrust program."""
# Cleanup the main namespace, leaving the App class.
import __main__
md = __main__.__dict__
keepers = original
keepers.append('App')
for key in md.keys():
if key not in keepers:
del md[key]
# Create an application instance.
app = App(0)
# Mimic the contents of the standard Python shell's sys.path.
import sys
if sys.path[0]:
sys.path[0] = ''
# Add the application object to the sys module's namespace.
# This allows a shell user to do:
# >>> import sys
# >>> sys.app.whatever
sys.app = app
del sys
# Cleanup the main namespace some more.
if md.has_key('App') and md['App'] is App:
del md['App']
if md.has_key('__main__') and md['__main__'] is __main__:
del md['__main__']
# Start the wxPython event loop.
app.MainLoop()
if __name__ == '__main__':
main()