[Tutor] importing modules

[Rik Klaver]

I have downloaded some modules (or packages), which I've already put under 
the 'Python21' folder in Win98. My problem is: Python lets me import some, 
such as dynwin, pmw and pingo, but not the Mmtk20, Numeric and Htmlgen. For 
some modules Python raises a SystemError.
Is the fact that Python does not recognize these modules due to their 
DOS-names or to Python immediately recognizing, whenever a module is 
imported, a (say) __init__-file?
I have no idea and I would very much like to use these modules (especially 
the Mtmk)..

thanks in advance for any comments

Rik Klaver
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