Workaround for bug #1512124
Workaround for bug #1512124

Without this patch IDLE will get unresponsive when you open the debugger
window on OSX. This is both using the system Tcl/Tk on Tiger as the latest
universal download from tk-components.sf.net.

sk-/python2.7-type-annotator,sk-/python2.7-type-annotator,sk-/python2.7-type-annotator