in reply to Re^2: Undefined import name priority issue?
in thread Undefined import name priority issue?

The issue seems to be the existance of a file in mylib with name 'json.pm'

No, half of the issue is that you are doing this:

  use lib 'mylib';
  use mylib::json;

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You add the "mylib" directory to the module search path (@INC). In that case, your module should be simply named json and not mylib::json. If you want to load it as mylib::json, don't add the "mylib" directory to @INC, but the directory containing the "mylib" directory (i.e. "."). Older perls already include "." in @INC, that's why it probably works at all.

The second part of the issue is that your filesystem is not case sensitive. Do you see any difference between json and JSON? I see four different bits, but your filesystem does not. So when perl attempts to load "JSON.pm" containing the JSON package, it is fed "json.pm" containing the mylib::json package instead.

Alexander

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Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

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Re^4: Undefined import name priority issue?
by sectokia (Friar) on Apr 08, 2025 at 21:56 UTC

    Thanks: that is it exactly... should not have "use lib 'mylib';" at all, isn't needed because I want mylib.pm to reference mylib::json.

[reply]

      You shouldn't have used use mylib; if you use use mylib::json; and if the module uses package mylib::json;, correct.

      You shouldn't have used use lib in modules. If you got that far, Perl already knows where modules can be found.

      You shouldn't have used use lib '.'; because the current work directory isn't guaranteed to be the script's directory. You should be using 

      use FindBin qw( $RealBin );
use lib $RealBin;

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