there are three methods in wxPython:
1,wx.FindWindowById(id,parent = None)
2,wx.FindWindowByName(name,parent = None)
3,wx.FindWindowByLabel(label,parent = None)
in all three cases,the parent argument can be used to limit the search to a particular subhierarchy (i.e.,it's equivalent to calling the Find method of that argument ). Also ,FindWindowByName() looks first in the name arguments' if it does not find a match ,it calls FindWindowByLabel() to look for a match.