diff -up wxPython-src-3.0.2.0/wxPython/wx/lib/mixins/listctrl.py.editzeroheight wxPython-src-3.0.2.0/wxPython/wx/lib/mixins/listctrl.py
--- wxPython-src-3.0.2.0/wxPython/wx/lib/mixins/listctrl.py.editzeroheight 2014-10-13 18:37:52.000000000 -0400
+++ wxPython-src-3.0.2.0/wxPython/wx/lib/mixins/listctrl.py 2015-09-29 20:57:15.334780365 -0400
@@ -604,7 +604,11 @@ class TextEditMixin:
y0 = self.GetItemRect(row)[1]
editor = self.editor
- editor.SetDimensions(x0-scrolloffset,y0, x1,-1)
+ # Temp fix: for some reason on GTK3, setting the height as -1 (default)
+ # with the above code flow results in the height being zero. Work
+ # around this by setting the height to the existing height. Upstream
+ # bug reported: http://trac.wxwidgets.org/ticket/17160
+ editor.SetDimensions(x0-scrolloffset,y0, x1,editor.GetSize()[1])
editor.SetValue(self.GetItem(row, col).GetText())
editor.Show()