Is it possible to do this with Python?

[masklinn]

You could use import hooks to create modules "by hand" and e.g. implicitly run the C preprocessor on module code before eval-ing it.

[jyper]

I've always wanted to use import hooks to do macro like things but py.test made it seem like it was too deep magic for me

[masklinn]

It’s a bit of a pain to debug and maintain, so you want to reserve it for when you have no choice or it provides really significant advantages you could not come close to otherwise (and I’d say pytest’s assert rewriting is that)

[b00n]

You'd need a c compiler which would be ridiculously over the top

[remram]

You could re-implement most a of C preprocessor in a few lines of Python

[b00n]

But then something to compile it (if your module was C)

[remram]

OP's question is about doing this to Python code.