selective use of modules

[Neil]

Hi,   This is a general question as opposed to 'I need help with...'   The code below does what is expected - whether if(1) or if(0)   use strict; use warnings; use Data::Dumper; my $object;   if (1)    {    use CreateYourWeb::Logger;    $object = CreateYourWeb::Logger->new(logfile=>'c:/test.log');    } else    {    use CreateYourWeb::Trapper;    $object = CreateYourWeb::Trapper->new(trapper=>'trapcatcher');    } print Dumper $object;     What I want to know - but I can't seem to find the right perldoc - or I have and just don't 'get it',  ... is this ...   When selectively using modules in this way - does the path not taken still end up with the module being compiled and stored as potential code ?   Thanks In Advance, Neil