try earlier wxPython?

.github/workflows/build.yml

@@ -29,13 +29,13 @@ jobs:
           sudo apt-get install libgeos-dev
 
           # for wxPython
-          sudo apt-get install glib-networking libsdl2-dev
+          sudo apt-get install glib-networking libsdl1.2-dev
 
           # for PyGObject
           sudo apt install libgirepository1.0-dev
 
           # wxPython doen't publish linux wheels in pypi
-          wget -q https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-16.04/wxPython-4.0.7-cp27-cp27mu-linux_x86_64.whl
+          wget -q https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-16.04/wxPython-4.0.6-cp27-cp27mu-linux_x86_64.whl
           pip install wxPython*.whl
 
           # We can't use the shapely wheel because it includes the geos