The output seems to indicate that a lexical variable (i.e. $var) is not associated with package level scope.

Correct. By definition, lexicals are block scoped and in no way related to packages. The file is considered a block for this purpose.

If you want $Test::var to work, change my to our, making $var a package variable instead of a lexical.

Furthermore, there doesn't appear to be any way to prevent an interloper from creating subroutines within the namespace of neighboring (or distant) packages.

That's true, but I haven't known this to be a problem. Any of the following three lines of code would create a sub named new_sub in the package Test, no matter which file contained the code.

{ package Test; sub new_sub { ... } }

  -or-

sub Test::new_sub { ... }

  -or-

*Test::new_sub = sub { ... };

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In reply to Re: Packages, scope, and lexical variables. by ikegami
in thread Packages, scope, and lexical variables by DigitalKitty

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