Strange error in wxpython List Control

During a recent manipulation to delete elements of WxPython's ListControl object, the application gave the following strange error as a pop up:
Could not retrieve information about list control item #Number
The number was always the last element of the list control.
The list control wiki also does not explains this issue.
This question was discussed before, but was wrongly asked.
The error is actually in finding the last element of the list control; asthe self.logwin.GetItemCount()  results in an error. The last correct element is actually at self.logwin.GetItemCount()-1
Hopefully this solves the problems of others who stumble upon here.