Reason for Python's for/while else-clause

/* Simulating a while-else contruct with gotos and an if-else */

goto looptest;
body: {
    /* code for the loop body goes here
       "continue" translates to "goto looptest;"
       "break" translates to "goto done;"
    */
}
looptest:
    if (condition) {
        goto body;
    } else {
        /* code for the else-clause goes here */
    }
done: