python-3.6.zip added from Github

README.cosmo contains the necessary links.

third_party/python/Include/sliceobject.h

@@ -0,0 +1,65 @@
+#ifndef Py_SLICEOBJECT_H
+#define Py_SLICEOBJECT_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* The unique ellipsis object "..." */
+
+PyAPI_DATA(PyObject) _Py_EllipsisObject; /* Don't use this directly */
+
+#define Py_Ellipsis (&_Py_EllipsisObject)
+
+/* Slice object interface */
+
+/*
+
+A slice object containing start, stop, and step data members (the
+names are from range).  After much talk with Guido, it was decided to
+let these be any arbitrary python type.  Py_None stands for omitted values.
+*/
+#ifndef Py_LIMITED_API
+typedef struct {
+    PyObject_HEAD
+    PyObject *start, *stop, *step;	/* not NULL */
+} PySliceObject;
+#endif
+
+PyAPI_DATA(PyTypeObject) PySlice_Type;
+PyAPI_DATA(PyTypeObject) PyEllipsis_Type;
+
+#define PySlice_Check(op) (Py_TYPE(op) == &PySlice_Type)
+
+PyAPI_FUNC(PyObject *) PySlice_New(PyObject* start, PyObject* stop,
+                                  PyObject* step);
+#ifndef Py_LIMITED_API
+PyAPI_FUNC(PyObject *) _PySlice_FromIndices(Py_ssize_t start, Py_ssize_t stop);
+PyAPI_FUNC(int) _PySlice_GetLongIndices(PySliceObject *self, PyObject *length,
+                                 PyObject **start_ptr, PyObject **stop_ptr,
+                                 PyObject **step_ptr);
+#endif
+PyAPI_FUNC(int) PySlice_GetIndices(PyObject *r, Py_ssize_t length,
+                                  Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
+PyAPI_FUNC(int) PySlice_GetIndicesEx(PyObject *r, Py_ssize_t length,
+                                     Py_ssize_t *start, Py_ssize_t *stop,
+                                     Py_ssize_t *step, Py_ssize_t *slicelength);
+
+#if !defined(Py_LIMITED_API) || (Py_LIMITED_API+0 >= 0x03050400 && Py_LIMITED_API+0 < 0x03060000) || Py_LIMITED_API+0 >= 0x03060100
+#ifdef Py_LIMITED_API
+#define PySlice_GetIndicesEx(slice, length, start, stop, step, slicelen) (  \
+    PySlice_Unpack((slice), (start), (stop), (step)) < 0 ?                  \
+    ((*(slicelen) = 0), -1) :                                               \
+    ((*(slicelen) = PySlice_AdjustIndices((length), (start), (stop), *(step))), \
+     0))
+#endif
+PyAPI_FUNC(int) PySlice_Unpack(PyObject *slice,
+                               Py_ssize_t *start, Py_ssize_t *stop, Py_ssize_t *step);
+PyAPI_FUNC(Py_ssize_t) PySlice_AdjustIndices(Py_ssize_t length,
+                                             Py_ssize_t *start, Py_ssize_t *stop,
+                                             Py_ssize_t step);
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* !Py_SLICEOBJECT_H */