libmodulefinder.tex exists from 2.4 branch but 
html file is not created and modulefinder is not listed in 
Global Module Index.

 http://www.python.org/doc/2.4.1/modindex.html

The fix is trivial. Just add \input{modulefinder} to 
Doc/lib/lib.tex.

My only concern is where modulefinder should reside.

Since its main purpose is to parse source 
codes, "Python Language Services" seems best. But it 
also seems reasonable to put it in "Python Runtime 
Services" along with imp or zipimport modules that also 
do import-related jobs.

If this is intentional(the doc is just a draft and not 
completed yet), feel free to mark this invalid or whatever. 
Status of bug #914375 is still open.

 [modulefinder is not documented]
 http://www.python.org/sf/914375

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My fault.

  \input{modulefinder}
should be ::
  \input{libmodulefinder}

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Okay to check in?

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Bad documentation is better than nothing, so it should be
linked in.   "Runtime Services" seems like the right section
to me; Fred can always change it if he disagrees.  Please
check in the change, on both the HEAD and 2.4-maint branches.

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Okay, checked in as Doc/lib/lib.tex rev1.231.2.2, rev1.239.