I read these three C api functions, They are similar, because they all construct a tuple[1].
IMHO, Py_BuildValue is more simple to use than PyTuple_Pack that is more simple to use than PyTuple_New. Where to use one or the other? What's the relative performance of the three functions? [1] actually, Py_BuildValue can also return non-tuple objects. -- https://mail.python.org/mailman/listinfo/python-list
