Modified PyImport_Import and PyImport_ImportModule to always use absolute imports by calling __import__ with an explicit level of 0
Added a new API function PyImport_ImportModuleNoBlock. It solves the problem with dead locks when mixing threads and imports
diff --git a/Include/py_curses.h b/Include/py_curses.h
index b045a59..f38f765 100644
--- a/Include/py_curses.h
+++ b/Include/py_curses.h
@@ -90,7 +90,7 @@
 
 #define import_curses() \
 { \
-  PyObject *module = PyImport_ImportModule("_curses"); \
+  PyObject *module = PyImport_ImportModuleNoBlock("_curses"); \
   if (module != NULL) { \
     PyObject *module_dict = PyModule_GetDict(module); \
     PyObject *c_api_object = PyDict_GetItemString(module_dict, "_C_API"); \