I keep getting a message that bareword “is_perl55” is not allowed when “strict subs” is used.

You should post the full message. It surely sports a file name and line number. If it doesn't, try 

use Carp;
BEGIN { $SIG{__DIE__} = \&Carp::confess; }
use WWW::Mechanize;

[download]

which should give you a clue.

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

In reply to Re: Bareword error in WWW::Mechanize by shmem
in thread WWW::Mechanize “use constant xx” gets bareword error by Old_Hat

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