I have a CGI script using a number of modules (objects) to handle the guts of the processing work. While trying to debug this script I added a warn message to the module I thought the script was using. This warn message never appeared in the logs.
For better or for worse (probably worse), there are multiple copies of this particular module strewn around the file system. Is there any easy way to check the file location of the module whenever a new instance of the object or a method call is made to make sure I am editing the right piece of code in trying to fix bugs