Converters for file pointers

[mr-martian]

I'm writing bindings for a library that passes a lot file pointers around and I'm trying to figure out how to pass those in from Python. I could just have the bindings only operate on filenames just open a new file for each function call (which is often how they would get used anyway) but I was curious if there was a straightforward way to turn a Python file object into a FILE*.

[mr-martian]

Alternatively, I can switch to streams, but then iostream.h assumes that what it's redirecting is always UTF-8 but I need to be able to write arbitrary strings of bytes. Is there any way to make it not do that?