BUG: ticket #1578, Fix python-debug warning for python >= 2.7.

In Python >= 2.7 the memory management of unicode objects changed from
PyMem_* to PyObject_*. Numpy had its own modified copy of some of the
Python code for handling unicode objects and it needed to be updated
to deal with the change. Thanks to Joseph Miessner for tracking this down
and finding the fix.

2 files changed, 18 insertions, 4 deletions

diff --git a/numpy/core/src/multiarray/scalarapi.c b/numpy/core/src/multiarray/scalarapi.c
index e43e0dbe8..5afa61a1c 100644
--- a/numpy/core/src/multiarray/scalarapi.c
+++ b/numpy/core/src/multiarray/scalarapi.c
@@ -707,7 +707,11 @@ PyArray_Scalar(void *data, PyArray_Descr *descr, PyObject *base)
 #endif
             /* Need an extra slot and need to use Python memory manager */
             uni->str = NULL;
-            destptr = PyMem_NEW(Py_UNICODE,length+1);
+#if PY_VERSION_HEX >= 0x02070000
+            destptr = PyObject_MALLOC(sizeof(Py_UNICODE) * (length + 1));
+#else            
+            destptr = PyMem_NEW(Py_UNICODE, length + 1);
+#endif            
             if (destptr == NULL) {
                 Py_DECREF(obj);
                 return PyErr_NoMemory();
diff --git a/numpy/core/src/multiarray/ucsnarrow.c b/numpy/core/src/multiarray/ucsnarrow.c
index 607ed834f..c192bbd1c 100644
--- a/numpy/core/src/multiarray/ucsnarrow.c
+++ b/numpy/core/src/multiarray/ucsnarrow.c
@@ -90,8 +90,14 @@ MyPyUnicode_New(int length)
 {
     PyUnicodeObject *unicode;
     unicode = PyObject_New(PyUnicodeObject, &PyUnicode_Type);
-    if (unicode == NULL) return NULL;
-    unicode->str = PyMem_NEW(Py_UNICODE, length+1);
+    if (unicode == NULL) {
+        return NULL;
+    }
+#if PY_VERSION_HEX >= 0x02070000
+    unicode->str = PyObject_MALLOC(sizeof(Py_UNICODE) * (length + 1));
+#else
+    unicode->str = PyMem_NEW(Py_UNICODE, length + 1);
+#endif
     if (!unicode->str) {
         _Py_ForgetReference((PyObject *)unicode);
         PyObject_Del(unicode);
@@ -114,7 +120,11 @@ MyPyUnicode_Resize(PyUnicodeObject *uni, int length)
     void *oldstr;
 
     oldstr = uni->str;
-    PyMem_RESIZE(uni->str, Py_UNICODE, length+1);
+#if PY_VERSION_HEX >= 0x02070000
+    PyObject_REALLOC(uni->str, sizeof(Py_UNICODE) * (length + 1));
+#else
+    PyMem_RESIZE(uni->str, Py_UNICODE, length + 1);
+#endif
     if (!uni->str) {
         uni->str = oldstr;
         PyErr_NoMemory();