Almost since doesn't quite work in Ruby:

Evaluating:

    p='"%s"';r="'%s'";_='p=%s;r=%s;_=%s;print(_%%((0and[r%%p,p%%r,r%%_])or(tuple([r%%p,p%%r,r%%_]))))';print(_%((0and[r%p,p%r,r%_])or(tuple([r%p,p%r,r%_]))))

becomes:

    p='"%s"';r="'%s'";_='p=%s;r=%s;_=%s;print(_%%((0and[r%%p,p%%r,r%%_])or(tuple([r%%p,p%%r,r%%_]))))'%_]))))

Too many '%'s in some places