fields: Add a from_python method which can be overwritten (example usage in BitMaskField)
fields: Add a from_python method which can be overwritten (example usage in BitMaskField)

jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow,jleclanche/pywow