1. Georg Brandl
  2. sphinx

Source

sphinx / sphinx / texinputs / sphinx.sty

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%
% sphinx.sty
%
% Adapted from the old python.sty, mostly written by Fred Drake,
% by Georg Brandl.
%

\NeedsTeXFormat{LaTeX2e}[1995/12/01]
\ProvidesPackage{sphinx}[2008/05/01 LaTeX package (Sphinx markup)]

\RequirePackage{textcomp}
\RequirePackage{times}
\RequirePackage{fancyvrb}
\RequirePackage{titlesec}
\RequirePackage{tabulary}
\RequirePackage{amsmath} % for \text

\RequirePackage{color}
% Redefine these colors to your liking in the preamble.
\definecolor{TitleColor}{rgb}{0.126,0.263,0.361}
\definecolor{InnerLinkColor}{rgb}{0.208,0.374,0.486}
\definecolor{OuterLinkColor}{rgb}{0.216,0.439,0.388}
% Redefine these colors to something not white if you want to have colored
% background and border for code examples.
\definecolor{VerbatimColor}{rgb}{1,1,1}
\definecolor{VerbatimBorderColor}{rgb}{1,1,1}

\RequirePackage[colorlinks,
		breaklinks,
		linkcolor=InnerLinkColor,
		filecolor=OuterLinkColor,
		menucolor=OuterLinkColor,
		pagecolor=OuterLinkColor,
		urlcolor=OuterLinkColor,
	       ]{hyperref}

\RequirePackage{framed}

\ifx\pdftexversion\undefined
  \RequirePackage{graphicx}
\else
  \RequirePackage[pdftex]{graphicx}
\fi

% Uncomment these two lines to ignore the paper size and make the page 
% size more like a typical published manual.
%\renewcommand{\paperheight}{9in}
%\renewcommand{\paperwidth}{8.5in}   % typical squarish manual
%\renewcommand{\paperwidth}{7in}     % O'Reilly ``Programmming Python''

% for PDF output, use maximal compression
\newif\ifpdf\pdffalse
\ifx\pdfoutput\undefined\else\ifcase\pdfoutput
  \let\py@NormalColor\relax
  \let\py@TitleColor\relax
\else
  \pdftrue
  \input{pdfcolor}
  \let\py@NormalColor=\Black
  \def\py@TitleColor{\color{TitleColor}}
  \pdfcompresslevel=9
\fi\fi

% Increase printable page size (copied from fullpage.sty)
\topmargin 0pt
\advance \topmargin by -\headheight
\advance \topmargin by -\headsep

% attempt to work a little better for A4 users
\textheight \paperheight
\advance\textheight by -2in

\oddsidemargin 0pt
\evensidemargin 0pt
%\evensidemargin -.25in  % for ``manual size'' documents
\marginparwidth 0.5in

\textwidth \paperwidth
\advance\textwidth by -2in


% Style parameters and macros used by most documents here
\raggedbottom
\sloppy
\parindent = 0mm
\parskip = 2mm
\hbadness = 5000                % don't print trivial gripes

\pagestyle{empty}               % start this way; change for
\pagenumbering{roman}           % ToC & chapters

% Use this to set the font family for headers and other decor:
\newcommand{\py@HeaderFamily}{\sffamily\bfseries}

% Set up abstract ways to get the normal and smaller font sizes that
% work even in footnote context.
\newif\ifpy@infootnote \py@infootnotefalse
\let\py@oldmakefntext\@makefntext
\renewcommand{\@makefntext}[1]{%
  \begingroup%
    \py@infootnotetrue
    \py@oldmakefntext{#1}%
  \endgroup%
}
\def\py@defaultsize{%
  \ifpy@infootnote\footnotesize\else\normalsize\fi%
}
\def\py@smallsize{%
  \ifpy@infootnote\scriptsize\else\small\fi%
}

% Redefine the 'normal' header/footer style when using "fancyhdr" package:
\@ifundefined{fancyhf}{}{
  % Use \pagestyle{normal} as the primary pagestyle for text.
  \fancypagestyle{normal}{
    \fancyhf{}
    \fancyfoot[LE,RO]{{\py@HeaderFamily\thepage}}
    \fancyfoot[LO]{{\py@HeaderFamily\nouppercase{\rightmark}}}
    \fancyfoot[RE]{{\py@HeaderFamily\nouppercase{\leftmark}}}
    \fancyhead[LE,RO]{{\py@HeaderFamily \@title, \py@release}}
    \renewcommand{\headrulewidth}{0.4pt}
    \renewcommand{\footrulewidth}{0.4pt}
  }
  % Update the plain style so we get the page number & footer line,
  % but not a chapter or section title.  This is to keep the first
  % page of a chapter and the blank page between chapters `clean.'
  \fancypagestyle{plain}{
    \fancyhf{}
    \fancyfoot[LE,RO]{{\py@HeaderFamily\thepage}}
    \renewcommand{\headrulewidth}{0pt}
    \renewcommand{\footrulewidth}{0.4pt}
  }
  % Redefine \cleardoublepage so that the blank page between chapters
  % gets the plain style and not the fancy style.  This is described
  % in the documentation for the fancyhdr package by Piet von Oostrum.
  \@ifundefined{chapter}{}{
    \renewcommand{\cleardoublepage}{
      \clearpage\if@openright \ifodd\c@page\else
      \hbox{}
      \thispagestyle{plain}
      \newpage
      \if@twocolumn\hbox{}\newpage\fi\fi\fi
    }
  }
}

% Some custom font markup commands.
%
\newcommand{\strong}[1]{{\bf #1}}
\newcommand{\code}[1]{\texttt{#1}}
\newcommand{\bfcode}[1]{\code{\bfseries#1}}
\newcommand{\samp}[1]{`\code{#1}'}
\newcommand{\email}[1]{{\py@smallsize\textsf{#1}}}

\newcommand{\py@modulebadkey}{{--just-some-junk--}}

% Redefine the Verbatim environment to allow border and background colors.
% The original environment is still used for verbatims within tables.
\let\OriginalVerbatim=\Verbatim
\let\endOriginalVerbatim=\endVerbatim

% Play with vpsace to be able to keep the indentation.
\newlength\distancetoright
\newlength\leftsidespace
\def\mycolorbox#1{%
  \setlength\leftsidespace{\@totalleftmargin}%
  \setlength\distancetoright{\textwidth}%
  \advance\distancetoright -\@totalleftmargin %
  \noindent\hspace*{\@totalleftmargin}%
  \fcolorbox{VerbatimBorderColor}{VerbatimColor}{%
  \begin{minipage}{\distancetoright}%
    \smallskip%
    \noindent\hspace*{-\leftsidespace}%
    #1
  \end{minipage}%
  }%
}
\def\FrameCommand{\mycolorbox}

\renewcommand{\Verbatim}[1][1]{%
  % The list environement is needed to control perfectly the vertical
  % space.
  \list{}{%
  \setlength\parskip{0pt}%
  \setlength\itemsep{0ex}%
  \setlength\topsep{0ex}%
  \setlength\partopsep{0pt}%
  \setlength\leftmargin{0pt}%
  }%
  \item\MakeFramed {\FrameRestore}%
     \small%
    \OriginalVerbatim[#1]%
}
\renewcommand{\endVerbatim}{%
    \endOriginalVerbatim%
  \endMakeFramed%
  \endlist%
}


% Lots of index-entry generation support.
%
% Command to wrap around stuff that refers to function / module /
% attribute names  in the index.  Default behavior: like \code{}.  To
% just keep the index entries in the roman font, uncomment the second
% definition; it matches O'Reilly style more.
%
\newcommand{\py@idxcode}[1]{\texttt{#1}}
%\renewcommand{\py@idxcode}[1]{#1}

% Command to generate two index entries (using subentries)
\newcommand{\indexii}[2]{\index{#1!#2}\index{#2!#1}}

% And three entries (using only one level of subentries)
\newcommand{\indexiii}[3]{\index{#1!#2 #3}\index{#2!#3, #1}\index{#3!#1 #2}}

% And four (again, using only one level of subentries)
\newcommand{\indexiv}[4]{
\index{#1!#2 #3 #4}
\index{#2!#3 #4, #1}
\index{#3!#4, #1 #2}
\index{#4!#1 #2 #3}
}

% Command to generate a reference to a function, statement, keyword,
% operator.
\newcommand{\kwindex}[1]{\indexii{keyword}{#1@{\py@idxcode{#1}}}}
\newcommand{\stindex}[1]{\indexii{statement}{#1@{\py@idxcode{#1}}}}
\newcommand{\opindex}[1]{\indexii{operator}{#1@{\py@idxcode{#1}}}}
\newcommand{\exindex}[1]{\indexii{exception}{#1@{\py@idxcode{#1}}}}
\newcommand{\obindex}[1]{\indexii{object}{#1}}
\newcommand{\bifuncindex}[1]{%
  \index{#1@{\py@idxcode{#1()}} (built-in function)}}

% Add an index entry for a module
\newcommand{\py@refmodule}[2]{\index{#1@{\py@idxcode{#1}} (#2module)}}
\newcommand{\refmodindex}[1]{\py@refmodule{#1}{}}
\newcommand{\refbimodindex}[1]{\py@refmodule{#1}{built-in }}
\newcommand{\refexmodindex}[1]{\py@refmodule{#1}{extension }}
\newcommand{\refstmodindex}[1]{\py@refmodule{#1}{standard }}

% support for the module index
\newif\ifpy@UseModuleIndex
\py@UseModuleIndexfalse

\newcommand{\makemodindex}{
  \newwrite\modindexfile
  \openout\modindexfile=mod\jobname.idx
  \py@UseModuleIndextrue
}

\newcommand{\printmodindex}{
  \@input@{mod\jobname.ind}
}

% Add the defining entry for a module
\newcommand{\py@modindex}[2]{%
  \renewcommand{\py@thismodule}{#1}
  \index{#1@{\py@idxcode{#1}} (#2module)}%
  \ifpy@UseModuleIndex%
    \@ifundefined{py@modplat@\py@thismodulekey}{
      \write\modindexfile{\protect\indexentry{#1@{\texttt{#1}}|hyperpage}{\thepage}}%
    }{\write\modindexfile{\protect\indexentry{#1@{\texttt{#1 }%
        \emph{(\platformof{#1})}}|hyperpage}{\thepage}}%
    }
  \fi%
}

% "Current" keys
\newcommand{\py@thisclass}{}
\newcommand{\py@thismodule}{}
\newcommand{\py@thismodulekey}{}
\newcommand{\py@thismoduletype}{}
\newcommand{\py@emptymodule}{}

% Module index types
\newcommand{\py@standardIndexModule}[1]{\py@modindex{#1}{standard }}
\newcommand{\py@builtinIndexModule}[1]{\py@modindex{#1}{built-in }}
\newcommand{\py@extensionIndexModule}[1]{\py@modindex{#1}{extension }}
\newcommand{\py@IndexModule}[1]{\py@modindex{#1}{}}

% \declaremodule[key]{type}{name}
\newcommand{\declaremodule}[3][\py@modulebadkey]{
  \renewcommand{\py@thismoduletype}{#2}
  \ifx\py@modulebadkey#1
    \renewcommand{\py@thismodulekey}{#3}
  \else
    \renewcommand{\py@thismodulekey}{#1}
  \fi
  \@ifundefined{py@#2IndexModule}{%
    \typeout{*** MACRO declaremodule called with unknown module type: `#2'}
    \py@IndexModule{#3}%
  }{%
    \csname py@#2IndexModule\endcsname{#3}%
  }
  %\label{module-\py@thismodulekey}
}

% Record module platforms for the Module Index
\newif\ifpy@ModPlatformFileIsOpen \py@ModPlatformFileIsOpenfalse
\long\def\py@writeModPlatformFile#1{%
  \protected@write\py@ModPlatformFile%
    {\let\label\@gobble \let\index\@gobble \let\glossary\@gobble}%
    {\string#1}%
}
\newcommand{\py@ModPlatformFilename}{\jobname.pla}
\newcommand{\platform}[1]{
  \ifpy@ModPlatformFileIsOpen\else
    \newwrite\py@ModPlatformFile
    \openout\py@ModPlatformFile=\py@ModPlatformFilename
    \py@ModPlatformFileIsOpentrue
  \fi
  \py@writeModPlatformFile{\py@defplatform{\py@thismodulekey}{#1}}
}
\newcommand{\py@defplatform}[2]{\expandafter\def\csname py@modplat@#1\endcsname{#2}}
\newcommand{\platformof}[1]{\csname py@modplat@#1\endcsname}

\InputIfFileExists{\jobname.pla}{}{}

% \moduleauthor{name}{email}
\newcommand{\moduleauthor}[2]{}

% \sectionauthor{name}{email}
\newcommand{\sectionauthor}[2]{}

% Ignore module synopsis.
\newcommand{\modulesynopsis}[1]{}

% Reset "current" objects.
\newcommand{\resetcurrentobjects}{
  \renewcommand{\py@thisclass}{}
  \renewcommand{\py@thismodule}{}
  \renewcommand{\py@thismodulekey}{}
  \renewcommand{\py@thismoduletype}{}
}

% Augment the sectioning commands used to get our own font family in place,
% and reset some internal data items:
\titleformat{\section}{\Large\py@HeaderFamily\py@TitleColor}%
{\thesection}{0.5em}{}{\py@NormalColor}
\titleformat{\subsection}{\large\py@HeaderFamily\py@TitleColor}%
{\thesubsection}{0.5em}{}{\py@NormalColor}
\titleformat{\subsubsection}{\py@HeaderFamily\py@TitleColor}%
{\thesubsubsection}{0.5em}{}{\py@NormalColor}
\titleformat{\paragraph}{\large\py@HeaderFamily\py@TitleColor}%
{}{0em}{}{\py@NormalColor}


% Now for a lot of semantically-loaded environments that do a ton of magical
% things to get the right formatting and index entries for the stuff in
% Python modules and C API.


% {fulllineitems} is used in one place in libregex.tex, but is really for
% internal use in this file.
%
\newcommand{\py@itemnewline}[1]{%
  \@tempdima\linewidth%
  \advance\@tempdima \leftmargin\makebox[\@tempdima][l]{#1}%
}

\newenvironment{fulllineitems}{
  \begin{list}{}{\labelwidth \leftmargin \labelsep 0pt
                 \rightmargin 0pt \topsep -\parskip \partopsep \parskip
                 \itemsep -\parsep
                 \let\makelabel=\py@itemnewline}
}{\end{list}}

% \optional is mostly for use in the arguments parameters to the various
% {*desc} environments defined below, but may be used elsewhere.  Known to
% be used in the debugger chapter.
%
% Typical usage:
%
%     \begin{funcdesc}{myfunc}{reqparm\optional{, optparm}}
%                                    ^^^       ^^^
%                          No space here       No space here
%
% When a function has multiple optional parameters, \optional should be
% nested, not chained.  This is right:
%
%     \begin{funcdesc}{myfunc}{\optional{parm1\optional{, parm2}}}
%
\let\py@badkey=\@undefined

\newcommand{\optional}[1]{%
  {\textnormal{\Large[}}{#1}\hspace{0.5mm}{\textnormal{\Large]}}}

% This can be used when a function or method accepts an varying number 
% of arguments, such as by using the *args syntax in the parameter list.
\newcommand{\py@moreargs}{...}

% This can be used when you don't want to document the parameters to a 
% function or method, but simply state that it's an alias for
% something else.
\newcommand{\py@unspecified}{...}

\newcommand{\py@varvars}[1]{{%
    {\let\unspecified=\py@unspecified%
      \let\moreargs=\py@moreargs%
      \emph{#1}}}}

\newlength{\py@argswidth}
\newcommand{\py@sigparams}[1]{%
  \parbox[t]{\py@argswidth}{\py@varvars{#1}\code{)}}}
\newcommand{\py@sigline}[2]{%
  \settowidth{\py@argswidth}{#1\code{(}}%
  \addtolength{\py@argswidth}{-2\py@argswidth}%
  \addtolength{\py@argswidth}{\textwidth}%
  \item[#1\code{(}\py@sigparams{#2}]}

% C functions ------------------------------------------------------------
% \begin{cfuncdesc}[refcount]{type}{name}{arglist}
% Note that the [refcount] slot should only be filled in by
% tools/anno-api.py; it pulls the value from the refcounts database.
\newcommand{\cfuncline}[3]{
  \py@sigline{\code{#1 \bfcode{#2}}}{#3}%
  \index{#2@{\py@idxcode{#2()}}}
}
\newenvironment{cfuncdesc}[4][\py@badkey]{
  \begin{fulllineitems}
    \cfuncline{#2}{#3}{#4}
    \ifx\@undefined#1\relax\else%
      \emph{Return value: \textbf{#1}.}\\
    \fi
}{\end{fulllineitems}}

% C variables ------------------------------------------------------------
% \begin{cvardesc}{type}{name}
\newenvironment{cvardesc}[2]{
  \begin{fulllineitems}
    \item[\code{#1 \bfcode{#2}}\index{#2@{\py@idxcode{#2}}}]
}{\end{fulllineitems}}

% C data types -----------------------------------------------------------
% \begin{ctypedesc}[index name]{typedef name}
\newenvironment{ctypedesc}[2][\py@badkey]{
  \begin{fulllineitems}
    \item[\bfcode{#2}%
    \ifx\@undefined#1\relax%
      \index{#2@{\py@idxcode{#2}} (C type)}
    \else%
      \index{#2@{\py@idxcode{#1}} (C type)}
    \fi]
}{\end{fulllineitems}}

% C type fields ----------------------------------------------------------
% \begin{cmemberdesc}{container type}{ctype}{membername}
\newcommand{\cmemberline}[3]{
  \item[\code{#2 \bfcode{#3}}]
  \index{#3@{\py@idxcode{#3}} (#1 member)}
}
\newenvironment{cmemberdesc}[3]{
  \begin{fulllineitems}
    \cmemberline{#1}{#2}{#3}
}{\end{fulllineitems}}

% Funky macros -----------------------------------------------------------
% \begin{csimplemacrodesc}{name}
% -- "simple" because it has no args; NOT for constant definitions!
\newenvironment{csimplemacrodesc}[1]{
  \begin{fulllineitems}
    \item[\bfcode{#1}\index{#1@{\py@idxcode{#1}} (macro)}]
}{\end{fulllineitems}}

% simple functions (not methods) -----------------------------------------
% \begin{funcdesc}{name}{args}
\newcommand{\funcline}[2]{%
  \funclineni{#1}{#2}%
  \ifx\py@thismodule\py@emptymodule%
  \index{#1@{\py@idxcode{#1()}}}%
  \else%
  \index{#1@{\py@idxcode{#1()}} (in module \py@thismodule)}%
  \fi}
\newenvironment{funcdesc}[2]{
  \begin{fulllineitems}
    \funcline{#1}{#2}
}{\end{fulllineitems}}

% similar to {funcdesc}, but doesn't add to the index
\newcommand{\funclineni}[2]{%
  \py@sigline{\bfcode{#1}}{#2}}
\newenvironment{funcdescni}[2]{
  \begin{fulllineitems}
    \funclineni{#1}{#2}
}{\end{fulllineitems}}

% classes ----------------------------------------------------------------
% \begin{classdesc}{name}{constructor args}
\newcommand{\classline}[2]{
  \py@sigline{\strong{class }\bfcode{#1}}{#2}%
  \ifx\py@thismodule\py@emptymodule%
  \index{#1@{\py@idxcode{#1}} (class)}%
  \else%
  \index{#1@{\py@idxcode{#1}} (class in \py@thismodule)}%
  \fi}
\newenvironment{classdesc}[2]{
  % Using \renewcommand doesn't work for this, for unknown reasons:
  \global\def\py@thisclass{#1}
  \begin{fulllineitems}
    \classline{#1}{#2}
}{\end{fulllineitems}}

\newcommand{\classlineni}[2]{
  \py@sigline{\strong{class }\bfcode{#1}}{#2}}
\newenvironment{classdescni}[2]{
  % Using \renewcommand doesn't work for this, for unknown reasons:
  \global\def\py@thisclass{#1}
  \begin{fulllineitems}
    \classlineni{#1}{#2}
}{\end{fulllineitems}}

% \begin{classdesc*}{name}
\newenvironment{classdesc*}[1]{
  % Using \renewcommand doesn't work for this, for unknown reasons:
  \global\def\py@thisclass{#1}
  \begin{fulllineitems}
    \item[\strong{class }\code{\bfcode{#1}}%
      \ifx\py@thismodule\py@emptymodule%
      \index{#1@{\py@idxcode{#1}} (class)}%
      \else%
      \index{#1@{\py@idxcode{#1}} (class in \py@thismodule)}%
      \fi]
}{\end{fulllineitems}}

% \begin{excclassdesc}{name}{constructor args}
% but indexes as an exception
\newenvironment{excclassdesc}[2]{
  % Using \renewcommand doesn't work for this, for unknown reasons:
  \global\def\py@thisclass{#1}
  \begin{fulllineitems}
    \py@sigline{\strong{exception }\bfcode{#1}}{#2}%
    \ifx\py@thismodule\py@emptymodule%
    \index{#1@{\py@idxcode{#1}} (exception)}%
    \else%
    \index{#1@{\py@idxcode{#1}} (exception in \py@thismodule)}%
    \fi
}{\end{fulllineitems}}

% There is no corresponding {excclassdesc*} environment.  To describe
% a class exception without parameters, use the {excdesc} environment.


\let\py@classbadkey=\@undefined

% object method ----------------------------------------------------------
% \begin{methoddesc}[classname]{methodname}{args}
\newcommand{\methodline}[3][\@undefined]{
  \methodlineni{#2}{#3}
  \ifx\@undefined#1\relax
    \index{#2@{\py@idxcode{#2()}} (\py@thisclass\ method)}
  \else
    \index{#2@{\py@idxcode{#2()}} (#1 method)}
  \fi
}
\newenvironment{methoddesc}[3][\@undefined]{
  \begin{fulllineitems}
    \ifx\@undefined#1\relax
      \methodline{#2}{#3}
    \else
      \def\py@thisclass{#1}
      \methodline{#2}{#3}
    \fi
}{\end{fulllineitems}}

% similar to {methoddesc}, but doesn't add to the index
% (never actually uses the optional argument)
\newcommand{\methodlineni}[3][\py@classbadkey]{%
  \py@sigline{\bfcode{#2}}{#3}}
\newenvironment{methoddescni}[3][\py@classbadkey]{
  \begin{fulllineitems}
    \methodlineni{#2}{#3}
}{\end{fulllineitems}}

% static method ----------------------------------------------------------
% \begin{staticmethoddesc}[classname]{methodname}{args}
\newcommand{\staticmethodline}[3][\@undefined]{
  \staticmethodlineni{#2}{#3}
  \ifx\@undefined#1\relax
    \index{#2@{\py@idxcode{#2()}} (\py@thisclass\ static method)}
  \else
    \index{#2@{\py@idxcode{#2()}} (#1 static method)}
  \fi
}
\newenvironment{staticmethoddesc}[3][\@undefined]{
  \begin{fulllineitems}
    \ifx\@undefined#1\relax
      \staticmethodline{#2}{#3}
    \else
      \def\py@thisclass{#1}
      \staticmethodline{#2}{#3}
    \fi
}{\end{fulllineitems}}

% similar to {staticmethoddesc}, but doesn't add to the index
% (never actually uses the optional argument)
\newcommand{\staticmethodlineni}[3][\py@classbadkey]{%
  \py@sigline{static \bfcode{#2}}{#3}}
\newenvironment{staticmethoddescni}[3][\py@classbadkey]{
  \begin{fulllineitems}
    \staticmethodlineni{#2}{#3}
}{\end{fulllineitems}}

% object data attribute --------------------------------------------------
% \begin{memberdesc}[classname]{membername}
\newcommand{\memberline}[2][\py@classbadkey]{%
  \ifx\@undefined#1\relax
    \memberlineni{#2}
    \index{#2@{\py@idxcode{#2}} (\py@thisclass\ attribute)}
  \else
    \memberlineni{#2}
    \index{#2@{\py@idxcode{#2}} (#1 attribute)}
  \fi
}
\newenvironment{memberdesc}[2][\py@classbadkey]{
  \begin{fulllineitems}
    \ifx\@undefined#1\relax
      \memberline{#2}
    \else
      \def\py@thisclass{#1}
      \memberline{#2}
    \fi
}{\end{fulllineitems}}

% similar to {memberdesc}, but doesn't add to the index
% (never actually uses the optional argument)
\newcommand{\memberlineni}[2][\py@classbadkey]{\item[\bfcode{#2}]}
\newenvironment{memberdescni}[2][\py@classbadkey]{
  \begin{fulllineitems}
    \memberlineni{#2}
}{\end{fulllineitems}}

% For exceptions: --------------------------------------------------------
% \begin{excdesc}{name}
%  -- for constructor information, use excclassdesc instead
\newenvironment{excdesc}[1]{
  \begin{fulllineitems}
    \item[\strong{exception }\bfcode{#1}%
          \ifx\py@thismodule\py@emptymodule%
          \index{#1@{\py@idxcode{#1}} (exception)}%
          \else%
          \index{#1@{\py@idxcode{#1}} (exception in \py@thismodule)}%
          \fi]
}{\end{fulllineitems}}

% Module data or constants: ----------------------------------------------
% \begin{datadesc}{name}
\newcommand{\dataline}[1]{%
  \datalineni{#1}\ifx\py@thismodule\py@emptymodule%
    \index{#1@{\py@idxcode{#1}} (data)}%
    \else%
    \index{#1@{\py@idxcode{#1}} (data in \py@thismodule)}%
    \fi}
\newenvironment{datadesc}[1]{
  \begin{fulllineitems}
    \dataline{#1}
}{\end{fulllineitems}}

% similar to {datadesc}, but doesn't add to the index
\newcommand{\datalineni}[1]{\item[\bfcode{#1}]\nopagebreak}
\newenvironment{datadescni}[1]{
  \begin{fulllineitems}
    \datalineni{#1}
}{\end{fulllineitems}}

% bytecode instruction ---------------------------------------------------
% \begin{opcodedesc}{name}{var}
% -- {var} may be {}
\newenvironment{opcodedesc}[2]{
  \begin{fulllineitems}
    \item[\bfcode{#1}\quad\emph{#2}]
}{\end{fulllineitems}}

% generic description ----------------------------------------------------
\newcommand{\descline}[1]{%
  \item[\bfcode{#1}]\nopagebreak%
}
\newenvironment{describe}[1]{
  \begin{fulllineitems}
    \descline{#1}
}{\end{fulllineitems}}

% This version is being checked in for the historical record; it shows
% how I've managed to get some aspects of this to work.  It will not
% be used in practice, so a subsequent revision will change things
% again.  This version has problems, but shows how to do something
% that proved more tedious than I'd expected, so I don't want to lose
% the example completely.
%
\newcommand{\grammartoken}[1]{\texttt{#1}}
\newenvironment{productionlist}[1][\py@badkey]{
  \def\optional##1{{\Large[}##1{\Large]}}
  \def\production##1##2{\code{##1}&::=&\code{##2}\\}
  \def\productioncont##1{& &\code{##1}\\}
  \def\token##1{##1}
  \let\grammartoken=\token
  \parindent=2em
  \indent
  \begin{tabular}{lcl}
}{%
  \end{tabular}
}

% Notices / Admonitions
%
\newlength{\py@noticelength}

\newcommand{\py@heavybox}{
  \setlength{\fboxrule}{1pt}
  \setlength{\fboxsep}{7pt}
  \setlength{\py@noticelength}{\linewidth}
  \addtolength{\py@noticelength}{-2\fboxsep}
  \addtolength{\py@noticelength}{-2\fboxrule}
  \setlength{\shadowsize}{3pt}
  \Sbox
  \minipage{\py@noticelength}
}
\newcommand{\py@endheavybox}{
  \endminipage
  \endSbox
  \fbox{\TheSbox}
}

% Some are quite plain:
\newcommand{\py@noticelabel@note}{Note:}
\newcommand{\py@noticestart@note}{}
\newcommand{\py@noticeend@note}{}
\newcommand{\py@noticelabel@hint}{Hint:}
\newcommand{\py@noticestart@hint}{}
\newcommand{\py@noticeend@hint}{}
\newcommand{\py@noticelabel@important}{Important:}
\newcommand{\py@noticestart@important}{}
\newcommand{\py@noticeend@important}{}
\newcommand{\py@noticelabel@tip}{Tip:}
\newcommand{\py@noticestart@tip}{}
\newcommand{\py@noticeend@tip}{}

% Others gets more visible distinction:
\newcommand{\py@noticelabel@warning}{Warning:}
\newcommand{\py@noticestart@warning}{\py@heavybox}
\newcommand{\py@noticeend@warning}{\py@endheavybox}
\newcommand{\py@noticelabel@caution}{Caution:}
\newcommand{\py@noticestart@caution}{\py@heavybox}
\newcommand{\py@noticeend@caution}{\py@endheavybox}
\newcommand{\py@noticelabel@attention}{Attention:}
\newcommand{\py@noticestart@attention}{\py@heavybox}
\newcommand{\py@noticeend@attention}{\py@endheavybox}
\newcommand{\py@noticelabel@danger}{Danger:}
\newcommand{\py@noticestart@danger}{\py@heavybox}
\newcommand{\py@noticeend@danger}{\py@endheavybox}
\newcommand{\py@noticelabel@error}{Error:}
\newcommand{\py@noticestart@error}{\py@heavybox}
\newcommand{\py@noticeend@error}{\py@endheavybox}


\newenvironment{notice}[1][note]{
  \def\py@noticetype{#1}
  \csname py@noticestart@#1\endcsname
  \par\strong{\csname py@noticelabel@#1\endcsname}
}{\csname py@noticeend@\py@noticetype\endcsname}
\newcommand{\note}[1]{\strong{\py@noticelabel@note} #1}
\newcommand{\warning}[1]{\strong{\py@noticelabel@warning} #1}

% Deprecation stuff.
% Should be extended to allow an index / list of deprecated stuff.  But
% there's a lot of stuff that needs to be done to make that automatable.
%
% First parameter is the release number that deprecates the feature, the
% second is the action the should be taken by users of the feature.
%
% Example:
%  \deprecated{1.5.1}{Use \method{frobnicate()} instead.}
%
\newcommand{\deprecated}[2]{%
  \strong{Deprecated since release #1.}  #2\par}

% New stuff.
% This should be used to mark things which have been added to the
% development tree but that aren't in the release, but are documented.
% This allows release of documentation that already includes updated
% descriptions.  Place at end of descriptor environment.
%
% Example:
%  \versionadded{1.5.2}
%  \versionchanged[short explanation]{2.0}
%
\newcommand{\versionadded}[2][\py@badkey]{%
  \ifx\@undefined#1\relax%
    {  New in version #2.  }%
  \else%
    {  New in version #2:\ #1  }%
  \fi%
}
\newcommand{\versionchanged}[2][\py@badkey]{%
  \ifx\@undefined#1\relax%
    {  Changed in version #2.  }%
  \else%
    {  Changed in version #2:\ #1  }%
  \fi%
}


% See-also environment
\newenvironment{seealso}{
  \par
  \strong{See Also:}
  \par
}{\par}

% Allow the release number to be specified independently of the
% \date{}.  This allows the date to reflect the document's date and
% release to specify the release that is documented.
%
\newcommand{\py@release}{}
\newcommand{\version}{}
\newcommand{\shortversion}{}
\newcommand{\releaseinfo}{}
\newcommand{\releasename}{Release}
\newcommand{\release}[1]{%
  \renewcommand{\py@release}{\releasename\space\version}%
  \renewcommand{\version}{#1}}
\newcommand{\setshortversion}[1]{%
  \renewcommand{\shortversion}{#1}}
\newcommand{\setreleaseinfo}[1]{%
  \renewcommand{\releaseinfo}{#1}}

% Allow specification of the author's address separately from the
% author's name.  This can be used to format them differently, which
% is a good thing.
%
\newcommand{\py@authoraddress}{}
\newcommand{\authoraddress}[1]{\renewcommand{\py@authoraddress}{#1}}

% This sets up the fancy chapter headings that make the documents look
% at least a little better than the usual LaTeX output.
%
\@ifundefined{ChTitleVar}{}{
  \ChNameVar{\raggedleft\normalsize\py@HeaderFamily}
  \ChNumVar{\raggedleft \bfseries\Large\py@HeaderFamily}
  \ChTitleVar{\raggedleft \rm\Huge\py@HeaderFamily}
  % This creates chapter heads without the leading \vspace*{}:
  \def\@makechapterhead#1{%
    {\parindent \z@ \raggedright \normalfont
      \ifnum \c@secnumdepth >\m@ne
        \DOCH
      \fi
      \interlinepenalty\@M
      \DOTI{#1}
    }
  }
}

% Redefine description environment so that it is usable inside fulllineitems.
%
\renewcommand{\description}{%
  \list{}{\labelwidth\z@%
          \itemindent-\leftmargin%
	  \labelsep5pt%
          \let\makelabel=\descriptionlabel}}

% Definition lists; requested by AMK for HOWTO documents.  Probably useful
% elsewhere as well, so keep in in the general style support.
%
\newenvironment{definitions}{%
  \begin{description}%
  \def\term##1{\item[##1]\mbox{}\\*[0mm]}
}{%
  \end{description}%
}

% Tell TeX about pathological hyphenation cases:
\hyphenation{Base-HTTP-Re-quest-Hand-ler}


% The following is stuff copied from docutils' latex writer.
%
\newcommand{\optionlistlabel}[1]{\bf #1 \hfill}
\newenvironment{optionlist}[1]
{\begin{list}{}
  {\setlength{\labelwidth}{#1}
   \setlength{\rightmargin}{1cm}
   \setlength{\leftmargin}{\rightmargin}
   \addtolength{\leftmargin}{\labelwidth}
   \addtolength{\leftmargin}{\labelsep}
   \renewcommand{\makelabel}{\optionlistlabel}}
}{\end{list}}

\newlength{\lineblockindentation}
\setlength{\lineblockindentation}{2.5em}
\newenvironment{lineblock}[1]
{\begin{list}{}
  {\setlength{\partopsep}{\parskip}
   \addtolength{\partopsep}{\baselineskip}
   \topsep0pt\itemsep0.15\baselineskip\parsep0pt
   \leftmargin#1}
 \raggedright}
{\end{list}}

% Redefine includgraphics for avoiding images larger than the screen size
% If the size is not specified.
\let\py@Oldincludegraphics\includegraphics

\newbox\image@box%
\newdimen\image@width%
\renewcommand\includegraphics[2][\@empty]{%
  \ifx#1\@empty%
    \setbox\image@box=\hbox{\py@Oldincludegraphics{#2}}%
    \image@width\wd\image@box%
    \ifdim \image@width>\linewidth%
      \setbox\image@box=\hbox{\py@Oldincludegraphics[width=\linewidth]{#2}}%
    \fi%
    \box\image@box%
  \else%
    \py@Oldincludegraphics[#1]{#2}%
  \fi%
}