On Apr 24, 2012, at 1:41 PM, Giordano Bruno wrote:
> Any links or code template for doing simple translation from Python to Smalltalk (or other programming language for the case).
Jython converts Python to Java byte code, and Iron Python does the same for the .Net environment.
Cython takes a Python-like language and generate C code which uses the Python runtime, and Nuitka is a different approach.
HOWEVER! Those handle the deep semantics, like operator overloading and metaclasses. If you want simple syntactic translation then you can do that with Python's 'ast' module. Here's how to get the AST:
>>> import ast
>>> compile("for x in [1,2,3]: print x", "<string>", "exec", ast.PyCF_ONLY_AST)
<_ast.Module object at 0x10c6308d0>
>>> module = compile("for x in [1,2,3]: print x", "<string>", "exec", ast.PyCF_ONLY_AST)
"Module(body=[For(target=Name(id='x', ctx=Store()), iter=List(elts=[Num(n=1), Num(n=2), Num(n=3)], ctx=Load()), body=[Print(dest=None, values=[Name(id='x', ctx=Load())], nl=True)], orelse=)])"
With some tree walking you can get the basics of what you want pretty quickly. Since you're probably a Smalltalk fan, you could even dump the AST into text format, read it into a Smalltalk data structure, and let Smalltalk do the translation/evaluation.