turning it on for the script will turn it on for everything including every module that is used by the script. Is that correct?

Correct. eg:

$ cat ptt.pl 
use strict;
use warnings;
use Path::Tiny;

path ($ARGV[0])->spew (@ARGV);
$ perl -T ptt.pl foo
Insecure dependency in sysopen while running with -T switch at /usr/sh
+are/perl5/vendor_perl/Path/Tiny.pm line 830.
$

[download]

It would be of rather limited use otherwise.

🦛

In reply to Re^3: When not to use taint mode by hippo
in thread When not to use taint mode by Bod

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