dash2 has asked for the wisdom of the Perl Monks concerning the following question:

Mmmkay...

import $my_package qw/some_subroutine/;

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fails with 

Can't call method "import" on unblessed reference at sources/ZDisplay.
+pm line 436.

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How do I bless $my_package to refer to the package I want, which has the same name as the string contained in $my_package?

Much thanks.

dave hj~

Replies are listed 'Best First'.
Re: importing from variable packages
by davorg (Chancellor) on Mar 14, 2001 at 20:30 UTC

    No need to bless $my_package, simply slightly reorder your code.

    $my_package->import(qw/some_routine/);

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    Note that the first parameter that import gets will be the string that's in $my_package.

    --
    <http://www.dave.org.uk>

    "Perl makes the fun jobs fun
    and the boring jobs bearable" - me

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      Excellent. Thanks. So how come that works, and the indirect object style doesn't? My tiny brain hurts.

      dave hj~

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        From my quick testing, these two yield the same results: 

        import $pack 'hi';
$pack->import( 'hi' );

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        with each of them only producing the error you quoted when $pack is a reference and is not blessed. I don't have a ton of versions of Perl handy and these results were with Perl 5.6.0. Using Perl 5.004_01, I got results too weird to mention.

        So I suspect this is a Perl 5.005 bug you are experiencing.

                - tye (but my friends call me "Tye")
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