One of the things that I love about Python is that it has all the documentation you ever need (all right, almost) in the code itself. Many moons ago, the very first framework I wrote in ActionScript (Flash 5) used the same technique by placing documentation on the activation objects of functions (and it would be cool to see that practice make a comeback in AS3.)

In Python, to find out what properties an object has, you just ask for a listing. The following, for example, shows you all properties and methods on the os module.

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