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Markup nit: Command line options should be marked with \programopt. 

Other minor markup nits fixed.

Make reference to PyErr_Warn() a hyperlink.
This commit is contained in:
Fred Drake 2001-01-04 05:59:37 +00:00
parent 316ef7c574
commit 288927f426
1 changed files with 17 additions and 15 deletions
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32
Doc/lib/libwarnings.tex
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@ -3,9 +3,9 @@
\declaremodule{standard}{warnings} \declaremodule{standard}{warnings}
\modulesynopsis{Issue warning messages and control their disposition.} \modulesynopsis{Issue warning messages and control their disposition.}
\index{warnings} \index{warnings}
\versionadded{2.1}
Warning messages are typically issued in situations where it is useful Warning messages are typically issued in situations where it is useful
to alert the user of some condition in a program, where that condition to alert the user of some condition in a program, where that condition
@ -15,7 +15,9 @@ program uses an obsolete module.
Python programmers issue warnings by calling the \function{warn()} Python programmers issue warnings by calling the \function{warn()}
function defined in this module. (C programmers use function defined in this module. (C programmers use
\code{PyErr_Warn()}). \cfunction{PyErr_Warn()}; see the
\citetitle[../api/exceptionHandling.html]{Python/C API Reference
Manual} for details).
Warning messages are normally written to \code{sys.stderr}, but their Warning messages are normally written to \code{sys.stderr}, but their
disposition can be changed flexibly, from ignoring all warnings to disposition can be changed flexibly, from ignoring all warnings to
@ -50,7 +52,7 @@ categories. This categorization is useful to be able to filter out
groups of warnings. The following warnings category classes are groups of warnings. The following warnings category classes are
currently defined: currently defined:
\begin{tableii}{l|l}{code}{Class}{Description} \begin{tableii}{l|l}{exception}{Class}{Description}
\lineii{Warning}{This is the base class of all warning category \lineii{Warning}{This is the base class of all warning category
classes. It itself a subclass of Exception.} classes. It itself a subclass of Exception.}
@ -92,21 +94,21 @@ form (\var{action}, \var{message}, \var{category}, \var{module},
\item \var{action} is one of the following strings: \item \var{action} is one of the following strings:
\begin{tableii}{l|l}{code}{value}{disposition} \begin{tableii}{l|l}{code}{Value}{Disposition}
\lineii{\code{"error"}}{turn matching warnings into exceptions} \lineii{"error"}{turn matching warnings into exceptions}
\lineii{\code{"ignore"}}{never print matching warnings} \lineii{"ignore"}{never print matching warnings}
\lineii{\code{"always"}}{always print matching warnings} \lineii{"always"}{always print matching warnings}
\lineii{\code{"default"}}{print the first occurrence of matching \lineii{"default"}{print the first occurrence of matching
warnings for each location where the warning is issued} warnings for each location where the warning is issued}
\lineii{\code{"module"}}{print the first occurrence of matching \lineii{"module"}{print the first occurrence of matching
warnings for each module where the warning is issued} warnings for each module where the warning is issued}
\lineii{\code{"once"}}{print only the first occurrence of matching \lineii{"once"}{print only the first occurrence of matching
warnings, regardless of location} warnings, regardless of location}
\end{tableii} \end{tableii}
@ -130,9 +132,9 @@ Since the \exception{Warning} class is derived from the built-in
\exception{Exception} class, to turn a warning into an error we simply \exception{Exception} class, to turn a warning into an error we simply
raise \code{category(message)}. raise \code{category(message)}.
The warnings filter is initialized by \samp{-W} options passed to the The warnings filter is initialized by \programopt{-W} options passed
Python interpreter command line. The interpreter saves the arguments to the Python interpreter command line. The interpreter saves the
for all \samp{-W} options without interpretation in arguments for all \programopt{-W} options without interpretation in
\code{sys.warnoptions}; the \module{warnings} module parses these when \code{sys.warnoptions}; the \module{warnings} module parses these when
it is first imported (invalid options are ignored, after printing a it is first imported (invalid options are ignored, after printing a
message to \code{sys.stderr}). message to \code{sys.stderr}).
@ -187,6 +189,6 @@ arguments default to a value that matches everything.
\begin{funcdesc}{resetwarnings}{} \begin{funcdesc}{resetwarnings}{}
Reset the warnings filter. This discards the effect of all previous Reset the warnings filter. This discards the effect of all previous
calls to \function{filterwarnings()}, including that of the \samp{-W} calls to \function{filterwarnings()}, including that of the
command line options. \programopt{-W} command line options.
\end{funcdesc} \end{funcdesc}