Code generation
As we already mentioned, dynamic code generation is the most difficult approach to metaprogramming. There are tools in Python that allow you to generate and execute code or even make some modifications to already compiled code objects.
Various projects such as Hy (mentioned later) show that even whole languages can be reimplemented in Python using code generation techniques. This proves that the possibilities are practically limitless. Knowing how vast this topic is and how badly it is riddled with various pitfalls, I won't even try to give detailed suggestions on how to create code this way, or to provide useful code samples.
Anyway, knowing what is possible may be useful for you if you plan to study this field in more depth by yourself. So, treat this section only as a short summary of possible starting points for further learning.
Let's take a look at how to use the exec()
, eval()
, and compile()
functions.