Thanks! Interestingly, the documentation specifies putting this into .perldb: 
$DB::alias{px} = 's/px/DB::px/';
sub px {
    my $expr = shift;
    require Data::Printer;
    print Data::Printer::p($expr);
}

[download]
Which causes $expr to be printed twice, once colorized, and once uncolorized, as one might expect. Changing that last line to 
Data::Printer::p($expr);

[download]
fixes it.

In reply to Re^2: Using Data::Printer from the Perl debugger by ibm1620
in thread Using Data::Printer from the Perl debugger by ibm1620

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