diff -Naur Python-2.7/Python/import.c Python-2.7-magellan/Python/import.c
--- Python-2.7/Python/import.c	2010-05-20 20:37:55.000000000 +0200
+++ Python-2.7-magellan/Python/import.c	2010-08-19 13:00:07.000000000 +0200
@@ -886,7 +886,12 @@
     mode_t mode = srcstat->st_mode & ~S_IXUSR & ~S_IXGRP & ~S_IXOTH;
 #endif
 
-    fp = open_exclusive(cpathname, mode);
+	char *py_dontcompile = getenv("PYTHON_DONTCOMPILE");
+   
+	if (!py_dontcompile) 
+		fp = open_exclusive(cpathname, mode);
+	else
+		fp = NULL;
     if (fp == NULL) {
         if (Py_VerboseFlag)
             PySys_WriteStderr(