It took a little bit more time than we expected: it tends that people suddenly get some other tasks and of course with higher priority.

So, I decided to write thinkgs up myself. To implement python bindings I will use boost::python, but first I have to wrap common elliptics network operations into proper classes.
That's what I ended up with today:

int main()
{
	unsigned char id[DNET_ID_SIZE];
	elliptics_transform_openssl t("sha1");
	elliptics_log_file log("/dev/stderr", 15);

	memset(id, 1, DNET_ID_SIZE);

	elliptics_node n(id, &log);

	n.add_remote("devfs8", 1025, AF_INET);
	n.add_transform(t);
#if 1
	elliptics_callback_io callback(&log);

	memset(id, 0xff, DNET_ID_SIZE);
	n.read_data(id, 0, 0, callback);
#endif
	n.write_file(id, const_cast<char *>("/tmp/some_file.txt.bak"), 0, 0, 0);
	n.read_file(id, const_cast<char *>("/tmp/some_file.txt"), 0, 0);

	n.read_file(reinterpret_cast<void *>(const_cast<char *>("1.xml")), 5,
			const_cast<char *>("/tmp/1.xml.cpp"), 0, 0);

	/* cool, yeah? we have to wait for read_data() to complete actually */
	sleep(10);
}

Most of them can throw numeric exceptions. There are less than a dozen of classes, which I will put into proper boost::python wrappers.

And in a meantime it is of course possible to use them in c++ code. Current version can be found in git.