Based on guesswork by Adrian and Pete Lewin and some limited discussion between us!
- Python 3.x
- Rationale: that's what is used by the term 4 exercises
- Tabs not spaces.
- Ade is mostly a 'spaces' kind of guy, but pressing one key instead of 2, 4 or 8 means less opportunities for syntax mistakes.
- There should be a
mainfunction.- Rationale: Pete thinks it's a good idea. Ade's not sure of the rationale but I guess it's just normal practice in Python-land, so I'll go with it.
- It's OK for the kids to have to make derived classes, especially derived from
Sprite- Rationale: although this is seen as an advanced concept, kids are already familiar in Scratch with the concept of attaching scripts to objects.