- 2008-2012 Python 3 as a language becoming usable
- 2012-2016 Libraries gaining Python 2 compatibility (and dropping 2.4 and below)
- 2016-2020 Applications porting now that most libraries are compatible.
- 2008-2012 Python 3 as a language becoming usable
- 2012-2016 Libraries gaining Python 2 compatibility (and dropping 2.4 and below)
- 2016-2020 Applications porting now that most libraries are compatible.