cleaned up ujson initialization (#41864)

Author: WillAyd

pandas/_libs/src/ujson/python/objToJSON.c

@@ -35,11 +35,13 @@ Numeric decoder derived from from TCL library
 * Copyright (c) 1988-1993 The Regents of the University of California.
 * Copyright (c) 1994 Sun Microsystems, Inc.
 */
-#define PY_ARRAY_UNIQUE_SYMBOL UJSON_NUMPY
 
 #define PY_SSIZE_T_CLEAN
 #include <Python.h>
 #include <math.h>
+
+#define NO_IMPORT_ARRAY
+#define PY_ARRAY_UNIQUE_SYMBOL UJSON_NUMPY
 #include <numpy/arrayobject.h>
 #include <numpy/arrayscalars.h>
 #include <numpy/ndarraytypes.h>
@@ -178,8 +180,6 @@ void *initObjToJSON(void) {
         Py_DECREF(mod_natype);
     }
 
-    /* Initialise numpy API */
-    import_array();
     // GH 31463
     return NULL;
 }

pandas/_libs/src/ujson/python/ujson.c

@@ -38,6 +38,8 @@ Numeric decoder derived from from TCL library
 #include "version.h"
 #define PY_SSIZE_T_CLEAN
 #include <Python.h>
+#define PY_ARRAY_UNIQUE_SYMBOL UJSON_NUMPY
+#include "numpy/arrayobject.h"
 
 /* objToJSON */
 PyObject *objToJSON(PyObject *self, PyObject *args, PyObject *kwargs);
@@ -73,6 +75,7 @@ static PyModuleDef moduledef = {
 
 
 PyMODINIT_FUNC PyInit_json(void) {
+  import_array()
   initObjToJSON();  // TODO(username): clean up, maybe via tp_free?
   return PyModuleDef_Init(&moduledef);
 }