File pythonpath-2.48.patch of Package blender
Index: source/blender/python/BPY_interface.c
===================================================================
--- source/blender/python/BPY_interface.c.orig
+++ source/blender/python/BPY_interface.c
@@ -225,6 +225,12 @@ void BPY_start_python( int argc, char **
Py_Initialize( );
PySys_SetArgv( argc_copy, argv_copy );
+
+ /* Sanitize sys.path to prevent relative imports loading modules in
+ * the current working directory
+ */
+ PyRun_SimpleString("import sys; sys.path = filter(None, sys.path)");
+
/* Initialize thread support (also acquires lock) */
PyEval_InitThreads();