@@ -71,12 +71,13 @@ function install_get_pip {

 }

 function install_pip_tarball {

-    (cd $FILES; \

-        curl -O $PIP_TAR_URL; \

-        tar xvfz pip-$INSTALL_PIP_VERSION.tar.gz 1>/dev/null; \

-        cd pip-$INSTALL_PIP_VERSION; \

-        sudo -E python setup.py install 1>/dev/null; \

-    )

+    if [[ ! -r $FILES/pip-$INSTALL_PIP_VERSION.tar.gz ]]; then

+        (cd $FILES; \

+            curl -O $PIP_TAR_URL; \

+            tar xvfz pip-$INSTALL_PIP_VERSION.tar.gz 1>/dev/null)

+    fi

+    (cd $FILES/pip-$INSTALL_PIP_VERSION; \

+        sudo -E python setup.py install 1>/dev/null)

 }

 # Show starting versions