Two LaTeX document classes are defined specifically for use with
  the Python documentation.  The manual class is for large
  documents which are sectioned into chapters, and the howto
  class is for smaller documents.
The manual documents are larger and are used for most of the
  standard documents.  This document class is based on the standard
  LaTeX report class and is formatted very much like a long
  technical report.  The Python Reference
  Manual is a good example of a manual document, and the
  Python Library Reference is a large
  example.
The howto documents are shorter, and don't have the large
  structure of the manual documents.  This class is based on
  the standard LaTeX article class and is formatted somewhat
  like the Linux Documentation Project's ``HOWTO'' series as done
  originally using the LinuxDoc software.  The original intent for the
  document class was that it serve a similar role as the LDP's HOWTO
  series, but the applicability of the class turns out to be somewhat
  broader.  This class is used for ``how-to'' documents (this
  document is an example) and for shorter reference manuals for small,
  fairly cohesive module libraries.  Examples of the later use include
Using
  Kerberos from Python, which contains reference material for an
  extension package.  These documents are roughly equivalent to a
  single chapter from a larger work.
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