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Source: http://github.com/nanotube/pmw_fixes/commit/5e6dcbdaef2bb6c40037b922dd0efa081f1575ab (Daniel Folkinshteyn)
fix bug in OptionMenu.setitems, introduced with the fixing of this python
bug:
http://bugs.python.org/issue1342811
versions of python 2.5.4 and newer now automatically delete commands when
items are deleted
however, that causes error if the command is deleted manually beforehand.
old versions, on the contrary, require manual command deletion to free up
the objects.
so we put in a python version check to see if we need to manually delete
commands.
fixes the Pmw bug referred to here:
http://sourceforge.net/forum/forum.php?thread_id=3283195&forum_id=33675
and here:
http://sourceforge.net/tracker/?func=detail&aid=2795731&group_id=10743&ati
d=110743
--- a/src/Pmw/Pmw_1_3/lib/PmwOptionMenu.py
+++ b/src/Pmw/Pmw_1_3/lib/PmwOptionMenu.py
@@ -1,6 +1,7 @@
import types
import Tkinter
import Pmw
+import sys
class OptionMenu(Pmw.MegaWidget):
@@ -59,11 +60,17 @@ class OptionMenu(Pmw.MegaWidget):
def setitems(self, items, index = None):
- # Clean up old items and callback commands.
- for oldIndex in range(len(self._itemList)):
- tclCommandName = str(self._menu.entrycget(oldIndex, 'command'))
- if tclCommandName != '':
- self._menu.deletecommand(tclCommandName)
+ # python version check
+ # python versions >= 2.5.4 automatically clean commands
+ # and manually cleaning them causes errors when deleting items
+
+ if sys.version_info[0] * 100 + sys.version_info[1] * 10 + \
+ sys.version_info[2] < 254:
+ # Clean up old items and callback commands.
+ for oldIndex in range(len(self._itemList)):
+ tclCommandName = str(self._menu.entrycget(oldIndex, 'command'))
+ if tclCommandName != '':
+ self._menu.deletecommand(tclCommandName)
self._menu.delete(0, 'end')
self._itemList = list(items)
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