@EXPORT contains symbols to always export, and @EXPORT_OK contains symbols to export upon request, according to official doc. (https://perldoc.perl.org/Exporter)

It appears, however, that if a program use's a module and requests symbols from @EXPORT_OK, the symbols in @EXPORT are no longer implicitly imported -- they must be explicitly listed in the use statement. 

package Foo;
use v5.36;
use Exporter 'import';
our @EXPORT = qw/always_imported/;
our @EXPORT_OK = qw/optionally_imported/;

sub always_imported {
    say "Always imported.";
}
sub optionally_imported {
    say "Optionally imported.";
}
1;

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Program 1 doesn't request anything in its use statement. Its call to "always_imported" compiles and executes correctly. 
#!/usr/bin/env perl
use v5.36;

use Foo;
always_imported; # works

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Program 2 requests an optional symbol in @EXPORT_OK. Its call to "always_imported" no longer compiles, because the symbol wasn't imported. 
#!/usr/bin/env perl
use v5.36;

use Foo qw/optionally_imported/;
always_imported; # bareword error ("always_imported" sub not defined)

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I've noted the strong warnings against modules automatically exporting symbols, but I didn't run across anything that described the behavior I'm seeing. Is this working as designed?

In reply to Perl modules, Exporter, and @EXPORT vs. @EXPORT_OK by ibm1620

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