Thanks for that. I think that may be it. The name of the pyast
initialisation function depends on the version of python -
"PyInit_Ast" for V3 and "initAst" for pre-V3. I've just committed a
change to github so that tthe pyast setup.py file to choose the
correct name based on the python version. The only thing I'm not sure
about is the underscore at the start of the name. I'll leave Tim to
comment on that.