Very nice. This tutorial covers some of the things I plan on covering when I finally get around to writing a tutorial
based on Writing Solid CPAN Modules. Update: I just noticed How to make a CPAN Module Distribution and Simple Module Tutorial both of which look excellent.
In addition to strict and warnings, don't forget
taint mode testing.
Re coding style, Abigail's My coding guidelines is worth a read.
It's vital to choose a good interface first time. Once your module is released into the wild it may become practically impossible to change its interface; anything else can be fixed later. Two good nodes I've noticed re creating good interfaces are Ingy's "Swiss Army Light Sabre" - or, "how do you design your APIs?" and Often Overlooked OO Programming Guidelines. Any other good ones, please let me know. Update: I couldn't find any more, so I wrote one: On Interfaces and APIs.
Update: I expect TheDamian's upcoming book "Perl Best Practices" will have some sound advice on this subject.
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