Python instance method in C

Question

Consider the following Python (3.x) code:

class Foo(object):
    def bar(self):
        pass
foo = Foo()

How to write the same functionalit

Answer 1

I suggest you start from the example source code here -- it's part of Python 3's sources, and it exists specifically to show you, by example, how to perform what you require (and a few other things besides) -- use the C API to create a module, make a new type in that module, endow that type with methods and attributes. That's basically the first part of the source, culminating in the definition of Xxo_Type -- then you get examples of how to define various kinds of functions, some other types you may not care about, and finally the module object proper and its initialization (you can skip most of that of course, though not the module object and the parts of its initialization that lead up to the definition of the type of interest;-).

Most of the questions you might have while studying and adapting that source to your specific needs have good answers in the docs, especially in the section on "Object Implementation Support" -- but of course you can always open a new question here (one per issue would be best -- a "question" with many actual questions is always a bother!-) showing exactly what you're doing, what you were expecting as a result, and what you are seeing instead -- and you'll get answers which tend to include some pretty useful ones;-).