...

src/public/internal.c

@@ -20,6 +20,10 @@ static VM pk_default_vm;
 static VM* pk_all_vm[16];
 
 void py_initialize() {
+    if(!pk_current_vm){
+        c11__abort("py_initialize() can only be called once!");
+    }
+
     MemoryPools__initialize();
     py_Name__initialize();