Re: Reasons for looking at your favourite module's source

[adrianh]

Another pro: It acts as a salutary lesson on why you should write good, clear, readable code yourself.

Nothing drives this lesson home more than that first time you have to understand and maintain somebody else's code ;-)

[VSarkiss]

Better still: the first time you find yourself having to fix the code you wrote five years ago, and realizing you have no recollection of why you wrote it the way you did.