fix(datetime): do not re-initialize datetime module

Author: Xmader

src/DateType.cc

@@ -28,7 +28,7 @@ DateType::DateType(JSContext *cx, JS::HandleObject dateObj) {
   JS_CallFunctionName(cx, dateObj, "getSeconds", args, &second);
   JS_CallFunctionName(cx, dateObj, "getMilliseconds", args, &usecond);
 
-  PyDateTime_IMPORT;
+  if (!PyDateTimeAPI) { PyDateTime_IMPORT; }
   pyObject = PyDateTime_FromDateAndTime(
     year.toNumber(), month.toNumber() + 1, day.toNumber(),
     hour.toNumber(), minute.toNumber(), second.toNumber(),

src/jsTypeFactory.cc

@@ -67,7 +67,7 @@ size_t UCS4ToUTF16(const uint32_t *chars, size_t length, uint16_t **outStr) {
 }
 
 JS::Value jsTypeFactory(JSContext *cx, PyObject *object) {
-  PyDateTime_IMPORT; // for PyDateTime_Check
+  if (!PyDateTimeAPI) { PyDateTime_IMPORT; } // for PyDateTime_Check
 
   JS::RootedValue returnType(cx);
 

src/modules/pythonmonkey/pythonmonkey.cc

@@ -391,7 +391,7 @@ static JSFunctionSpec jsGlobalFunctions[] = {
 
 PyMODINIT_FUNC PyInit_pythonmonkey(void)
 {
-  PyDateTime_IMPORT;
+  if (!PyDateTimeAPI) { PyDateTime_IMPORT; }
 
   SpiderMonkeyError = PyErr_NewException("pythonmonkey.SpiderMonkeyError", NULL, NULL);
   if (!JS_Init()) {