diff --git a/Doc/lib/liblinecache.tex b/Doc/lib/liblinecache.tex
index c022ba9..98ab2a4 100644
--- a/Doc/lib/liblinecache.tex
+++ b/Doc/lib/liblinecache.tex
@@ -15,7 +15,7 @@
 
 The \module{linecache} module defines the following functions:
 
-\begin{funcdesc}{getline}{filename, lineno}
+\begin{funcdesc}{getline}{filename, lineno\optional{, module_globals}}
 Get line \var{lineno} from file named \var{filename}. This function
 will never throw an exception --- it will return \code{''} on errors
 (the terminating newline character will be included for lines that are
@@ -23,7 +23,11 @@
 
 If a file named \var{filename} is not found, the function will look
 for it in the module\indexiii{module}{search}{path} search path,
-\code{sys.path}.
+\code{sys.path}, after first checking for a PEP 302 \code{__loader__}
+in \var{module_globals}, in case the module was imported from a zipfile
+or other non-filesystem import source. 
+
+\versionadded[The \var{module_globals} parameter was added]{2.5}
 \end{funcdesc}
 
 \begin{funcdesc}{clearcache}{}
diff --git a/Doc/lib/libwarnings.tex b/Doc/lib/libwarnings.tex
index 8655451..7b829a0 100644
--- a/Doc/lib/libwarnings.tex
+++ b/Doc/lib/libwarnings.tex
@@ -169,7 +169,8 @@
 \end{funcdesc}
 
 \begin{funcdesc}{warn_explicit}{message, category, filename,
- lineno\optional{, module\optional{, registry}}}
+ lineno\optional{, module\optional{, registry\optional{,
+ module_globals}}}}
 This is a low-level interface to the functionality of
 \function{warn()}, passing in explicitly the message, category,
 filename and line number, and optionally the module name and the
@@ -179,6 +180,11 @@
 \var{message} must be a string and \var{category} a subclass of
 \exception{Warning} or \var{message} may be a \exception{Warning} instance,
 in which case \var{category} will be ignored.
+
+\var{module_globals}, if supplied, should be the global namespace in use
+by the code for which the warning is issued.  (This argument is used to
+support displaying source for modules found in zipfiles or other
+non-filesystem import sources, and was added in Python 2.5.)
 \end{funcdesc}
 
 \begin{funcdesc}{showwarning}{message, category, filename,