diff --git a/scripts/run.sh b/scripts/run.sh
index 795aac31..9f3505fc 100755
--- a/scripts/run.sh
+++ b/scripts/run.sh
@@ -2,4 +2,6 @@
 # run python interpreter with current dir as search path, and remove all
 # locale and proxy settings
 PYVER=2.4
-env -u ftp_proxy -u http_proxy -u LANGUAGE -u LC_ALL -u LC_CTYPE LANG=C PYTHONPATH=`pwd` python${PYVER} "$@"
+PYOPTS=
+#PYOPTS=-O
+env -u ftp_proxy -u http_proxy -u LANGUAGE -u LC_ALL -u LC_CTYPE LANG=C PYTHONPATH=`pwd` python${PYVER} $PYOPTS "$@"