Python: a few fixes

1. Is instance now works
2. Don't allow undefined as passed argument
3. Hint if we pass Python object, instead of dict for kwargs

Q: What's your opinion on BDSM?
A: Underrated
Add logger.toggle for mute/unmute
Fix Math(!)

You know you fucked up when you can't get basic math right
ComputeSections: add without conflicts
Draw shadows
Use FPS class
Use onclick for controls
PolarLine.fromCartesian now is proper
Python: Make stepping in easier

Q: What compels you to do this?
A: Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn
Python: Allow no argument name list for DEF

Q: When will he awake
A: Soon, my child
Silly test fix