Thanks, I wanted to be sure that I'm not missing an obscure pragma.

My approach is to declare the lexicals within the destination scope and to inspect the names in the importing package with PadWalker.

Of course this doesn't help importing groups of lexicals so they have to be listed individually, but maybe just syntactic sugar is not the worst approach.

use strict;
use warnings;

package bla;

my ($x,$y)=(42,43);

require export_var;

do {
  export_var->import  my ($x,$y) ;
  
  print $x,$y;
} for 1..3;

print $x,$y;
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use strict;
use warnings;
use feature 'say';

package export_var;
use PadWalker qw[var_name];
use Data::Dump;

my %value = (
  '$x'=>1,
  '$y'=>2,
 );


sub import {
  my $pkg=shift;
  for my $var (@_) {
   $var = $value{ var_name(1,\$var) };
 }
}
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