First, use is a compile-time operation, so hopefully, you have some way of getting the value early enough in the process. If not, you'll have to switch to require.

Which brings me to the second point. You can't provide a variable string to use, but you can decompose it to its definition: a BEGIN block around a require and a method call: 

## replace "use $string @imports" with:
BEGIN {
  (my $filename = $string) =~ s,::,/,g; # unix/windows only
  require $filename;
  $string->import(@imports);
}

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-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.

In reply to •Re: "use" file... by merlyn
in thread "use" file... by powerhouse

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