It may help to find other methods:
http://stackoverflow.com/questions/1023306/finding-current-executables-path-without-proc-self-exe


By the way, it should not "absolutize" the path when sys.executable is irrelevant. IMHO, it should render an empty thing in such case (code below).


--- Modules/getpath.c   (revision 77750)
+++ Modules/getpath.c   (working copy)
@@ -441,7 +441,7 @@
        }
        else
                progpath[0] = '\0';
-       if (progpath[0] != SEP)
+       if (progpath[0] != SEP && progpath[0] != '\0')
                absolutize(progpath);
        strncpy(argv0_path, progpath, MAXPATHLEN);
        argv0_path[MAXPATHLEN] = '\0';