Duncan Booth schrieb: > Lucas P Melo <lukepada...@gmail.com> wrote: > >> Hello, I'm a total noob about the C API. Is there any way to create a >> generator function using the C API? I couldn't find anything like the >> 'yield' keyword in it. >> >> Thanks in advance. > > You define a new type with tp_flags including Py_TPFLAGS_HAVE_ITER. > Anything that would be a local variable in your generator needs to become > an attribute in the type. > > The tp_init initialization function should contain all the code up to the > first yield, tp_iter should return self and tp_iternext should execute code > up to the next yield.
This is pretty easy to do in Cython (or Pyrex), BTW. Just write a class with an __iter__ and __next__ method, and Cython will generate the C-API code as expected. http://docs.cython.org/docs/special_methods.html#iterators Note that Cython doesn't currently support the "yield" statement, but that's certainly on the ToDo list. http://trac.cython.org/cython_trac/ticket/83 Stefan -- http://mail.python.org/mailman/listinfo/python-list