These modules are sort of like Mini Applications. Its a good feature for python as you dont have to write out a whole program…
If you extract the contents of the sis file, then you’ll notice a load of pyd files. Generally the name of it may give you a clue to what they are, and you should notice what i am talking about

An example of this is SmartSis and pyMegaModulePack – Without it, it wont run as its sort of missing the needed applications.

download megaPyModulePack 1.51