Fix passing interpreter object to function lookup class
Make Interpreter an extension class
Pre-compile some internal perl functions
Allow data-independent casting in to_python()
new doctest
Some extra python3 compatible doctests
Also handle exceptions without message in callbacks
Let len(..) on scalarvalues return string length if it is not an arrayref
Pass parameters for recursive to_python()
Use numeric comparison to see if scalar value is numeric
Remove obsolete dict() method

It has been replaced by to_python(). Now the doctests are python3 compatible.