Keystroke rebinding error

[https://me.yahoo.com/postrockrob#52e3a]

Bug report on OS X:

#---- System Information ----#
Peppy Version: 0.14.2
Operating System: Mac OS X (Darwin 10.4.0 i386)
Mac OSX: 10.6.4
Python Version: 2.6.1 (r261:67515, Feb 11 2010, 15:47:53)
[GCC 4.2.1 (Apple Inc. build 5646)]
wxPython Version: 2.8.11.0 (mac-unicode)
wxPython Info: (__WXMAC__, wxMac, unicode, wx-assertions-on, SWIG-1.3.29, mac-cg, mac-native-tb)
Python Encoding: Default=ascii  File=utf-8
wxPython Encoding: latin1
System Architecture: 64bit i386
Byte order: little
Frozen: False
#---- End System Information ----#

#---- Traceback Info ----#
*** Fri Jul  2 15:53:29 2010 ***
Traceback (most recent call last):
 File %22//usr/local/lib/wxPython-unicode-2.8.11.0/lib/python2.6/site-packages/wx-2.8-mac-unicode/wx/_core.py%22, line 14640, in <lambda>
   lambda event: event.callable(*event.args, **event.kw) )
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/fileopener.py%22, line 244, in finalizeAfterSuccessfulLoad
   mode = self.frame.tabs.newMode(self.buffer, mode_to_replace=self.mode_to_replace)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/notebook.py%22, line 291, in newMode
   self.updateWrapper(wrapper)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/notebook.py%22, line 206, in updateWrapper
   self.frame.switchMode()
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/frame.py%22, line 698, in switchMode
   self.setMenumap(mode)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/frame.py%22, line 474, in setMenumap
   self.root_accel.updateActions(self.show_toolbar)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/menu.py%22, line 314, in updateActions
   self.manageFrame(self.frame, *ctrls)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 1075, in manageFrame
   self.bindEvents(frame, *ctrls)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 1190, in bindEvents
   self.rebuildAllKeyBindings()
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 1213, in rebuildAllKeyBindings
   self.rebuildRootKeyBindings()
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 771, in rebuildRootKeyBindings
   self.rebuildWindowKeyBindings(self.multikey_binding_to_action)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 777, in rebuildWindowKeyBindings
   self.bindKeystrokes(key_binding, action, window)
 File %22/Library/Python/2.6/site-packages/peppy-0.14.2-py2.6.egg/peppy/lib/multikey.py%22, line 796, in bindKeystrokes
   raise DuplicateKeyError(%22Key sequence %s for action %s already mapped to %s for window %s%22 % (str([str(k) for k in keystrokes[:-1]]), action, existing.getAction(window), window))
DuplicateKeyError: Key sequence [] for action DeleteWindow id=0x1c341a10 mode=<peppy.fundamental.FundamentalMode; proxy of <Swig Object of type wxStyledTextCtrl * at 0x1b2dd960> > frame=BufferFrame peppy: Window #2 id=0x1b179870 already mapped to Cut id=0x1c341810 mode=<peppy.fundamental.FundamentalMode; proxy of <Swig Object of type wxStyledTextCtrl * at 0x1b2dd960> > frame=BufferFrame peppy: Window #2 id=0x1b179870 for window None

#---- End Traceback Info ----#

but couldn't duplicate it. Eventually, I did run into something similar:

Traceback (most recent call last):
  File "/data2/home/rob/src/peppy/peppy/notebook.py", line 91, in OnTabChanged
    self.frame.switchMode()
  File "/data2/home/rob/src/peppy/peppy/frame.py", line 720, in switchMode
    self.setMenumap(mode)
  File "/data2/home/rob/src/peppy/peppy/frame.py", line 491, in setMenumap
    self.root_accel.updateActions(self.show_toolbar)
  File "/data2/home/rob/src/peppy/peppy/menu.py", line 314, in updateActions
    self.manageFrame(self.frame, *ctrls)
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 1075, in manageFrame
    self.bindEvents(frame, *ctrls)
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 1190, in bindEvents
    self.rebuildAllKeyBindings()
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 1213, in rebuildAllKeyBindings
    self.rebuildRootKeyBindings()
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 771, in rebuildRootKeyBindings
    self.rebuildWindowKeyBindings(self.multikey_binding_to_action)
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 777, in rebuildWindowKeyBindings
    self.bindKeystrokes(key_binding, action, window)
  File "/data2/home/rob/src/peppy/peppy/lib/multikey.py", line 796, in bindKeystrokes
    raise DuplicateKeyError("Key sequence %s for action %s already mapped to %s for window %s" % (str([str(k) for k in keystrokes[:-1]]), action, existing.getAction(window), window))
DuplicateKeyError: Key sequence [] for action RebindSingleKeyAction id=0x56ea910 mode=<__builtin__.KeybindingMode; proxy of <Swig Object of type 'wxPanel *' at 0x56365a0> > frame=BufferFrame peppy: Window #1 id=0x4c9ba10 already mapped to DeleteWindow id=0x592cdd0 mode=<__builtin__.KeybindingMode; proxy of <Swig Object of type 'wxPanel *' at 0x56365a0> > frame=BufferFrame peppy: Window #1 id=0x4c9ba10 for window None

that I caused by trying to set a multi-key keybinding using C-RET, but hitting C-RET immediately. Apparently the empty keybinding gets entered, because if I use C-RET again and actually use a key, say SPC, I get ['', 'SPC'].

[rob]

(In [2556]) Fixed #853: added check to prevent empty keystroke from being used