7.1 External Tools

Many tools are needed to be able to process the Python documentation if all supported formats are required. This section lists the tools used and when each is required. Consult the Doc/README file to see if there are specific version requirements for any of these.

dvips: This program is a typical part of TEX installations. It is used to generate PostScript from the ``device independent'' .dvi files. It is needed for the conversion to PostScript.
emacs: Emacs is the kitchen sink of programmers' editors, and a damn fine kitchen sink it is. It also comes with some of the processing needed to support the proper menu structures for Texinfo documents when an info conversion is desired. This is needed for the info conversion. Using xemacs instead of FSF emacs may lead to instability in the conversion, but that's because nobody seems to maintain the Emacs Texinfo code in a portable manner.
latex: L^ATEX is a large and extensible macro package by Leslie Lamport, based on TEX, a world-class typesetter by Donald Knuth. It is used for the conversion to PostScript, and is needed for the HTML conversion as well (L^ATEX2HTML requires one of the intermediate files it creates).
latex2html: Probably the longest Perl script anyone ever attempted to maintain. This converts L^ATEX documents to HTML documents, and does a pretty reasonable job. It is required for the conversions to HTML and GNU info.
lynx: This is a text-mode Web browser which includes an HTML-to-plain text conversion. This is used to convert howto documents to text.
make: Just about any version should work for the standard documents, but GNU make is required for the experimental processes in Doc/tools/sgmlconv/, at least while they're experimental. This is not required for running the mkhowto script.
makeindex: This is a standard program for converting L^ATEX index data to a formatted index; it should be included with all L^ATEX installations. It is needed for the PDF and PostScript conversions.
makeinfo: GNU makeinfo is used to convert Texinfo documents to GNU info files. Since Texinfo is used as an intermediate format in the info conversion, this program is needed in that conversion.
pdflatex: pdfTEX is a relatively new variant of TEX, and is used to generate the PDF version of the manuals. It is typically installed as part of most of the large TEX distributions. pdflatex is pdfTEX using the L^ATEX format.
perl: Perl is required for L^ATEX2HTML and one of the scripts used to post-process L^ATEX2HTML output, as well as the HTML-to-Texinfo conversion. This is required for the HTML and GNU info conversions.
python: Python is used for many of the scripts in the Doc/tools/ directory; it is required for all conversions. This shouldn't be a problem if you're interested in writing documentation for Python!

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