bash python return

#!/bin/bash
for i in 1 2 3 4 5
do
        echo "Welcome $i times"
        #python 12localhost.py
        outputString=$(python 12localhost.py)
        echo $outputString
        RET=${outputString:0:4}
        if [ $RET = "True" ]
        then
                echo "TRUEEEEEEEEEEEEEE2"
                break
        else
                echo "FALSEEEEEEEEEEEEEEEE"
        fi
        sleep 10;
done