GitLab

also adds error checking for init utility code blocks

This allows a "C" function like
    extern "C" PyObject* f(PyTypeObject *a);
to be wrapped by Cython as
    from cpython.type import type
    cdef extern from *:
        object f(type a)

In particular, this allows Cython to produce code which calls f as
    f((PyTypeObject*) a)
which means that it will compile in C++.

Add Cython.Compiler.Importer to import code which relies on functionality that is not portable across python versions

--HG--
extra : transplant_source : n%98%20%EE%A3N%1D%20%3F%88%2A%8B%FE%A0%01%97%9F%04%ED%23

fixed unused function warning about __pyx_clear_code_object_cache() when cleanup code is not being generated

simple support for loading requirements (at least from the same utility code type and file),
caching support

clean up utility code parsing, encourage commenting in utility code files by stripping comments on writing