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diff --git a/Doc/lib/libbastion.tex b/Doc/lib/libbastion.tex deleted file mode 100644 index 9f45c47..0000000 --- a/Doc/lib/libbastion.tex +++ /dev/null @@ -1,57 +0,0 @@ -\section{\module{Bastion} --- - Restricting access to objects} - -\declaremodule{standard}{Bastion} -\modulesynopsis{Providing restricted access to objects.} -\moduleauthor{Barry Warsaw}{bwarsaw@python.org} -\versionchanged[Disabled module]{2.3} - -\begin{notice}[warning] - The documentation has been left in place to help in reading old code - that uses the module. -\end{notice} - -% I'm concerned that the word 'bastion' won't be understood by people -% for whom English is a second language, making the module name -% somewhat mysterious. Thus, the brief definition... --amk - -According to the dictionary, a bastion is ``a fortified area or -position'', or ``something that is considered a stronghold.'' It's a -suitable name for this module, which provides a way to forbid access -to certain attributes of an object. It must always be used with the -\refmodule{rexec} module, in order to allow restricted-mode programs -access to certain safe attributes of an object, while denying access -to other, unsafe attributes. - -% I've punted on the issue of documenting keyword arguments for now. - -\begin{funcdesc}{Bastion}{object\optional{, filter\optional{, - name\optional{, class}}}} -Protect the object \var{object}, returning a bastion for the -object. Any attempt to access one of the object's attributes will -have to be approved by the \var{filter} function; if the access is -denied an \exception{AttributeError} exception will be raised. - -If present, \var{filter} must be a function that accepts a string -containing an attribute name, and returns true if access to that -attribute will be permitted; if \var{filter} returns false, the access -is denied. The default filter denies access to any function beginning -with an underscore (\character{_}). The bastion's string representation -will be \samp{<Bastion for \var{name}>} if a value for -\var{name} is provided; otherwise, \samp{repr(\var{object})} will be -used. - -\var{class}, if present, should be a subclass of \class{BastionClass}; -see the code in \file{bastion.py} for the details. Overriding the -default \class{BastionClass} will rarely be required. -\end{funcdesc} - - -\begin{classdesc}{BastionClass}{getfunc, name} -Class which actually implements bastion objects. This is the default -class used by \function{Bastion()}. The \var{getfunc} parameter is a -function which returns the value of an attribute which should be -exposed to the restricted execution environment when called with the -name of the attribute as the only parameter. \var{name} is used to -construct the \function{repr()} of the \class{BastionClass} instance. -\end{classdesc} |