perl-Readonly: perl-Readonly (module for creating read-only scalars, arrays, hashes) perl-Readonly: perl-Readonly: This is a facility for creating non-modifiable variables. This is perl-Readonly: useful for configuration files, headers, etc. It can also be useful perl-Readonly: as a development and debugging tool, for catching updates to perl-Readonly: variables that should not be changed. perl-Readonly: perl-Readonly: Homepage: https://metacpan.org/release/Readonly perl-Readonly: perl-Readonly: perl-Readonly: