# prints '1'
    print length("\x{03c5}"), "\n";

##</code><code>##

        # prints '2'
    use bytes;
    print length("\x{03c5}"), "\n";

##</code><code>##

package Foo;

sub len {
    return length("\x{03c5}");
}

1;

##</code><code>##

BEGIN {
    package Foo;
    use bytes;
}
use Foo;

package main;
print Foo::len(), "\n";