diff --git a/Doc/lib/email.tex b/Doc/lib/email.tex
index 47727a7..3de3df3 100644
--- a/Doc/lib/email.tex
+++ b/Doc/lib/email.tex
@@ -94,7 +94,7 @@
 This table describes the release history of the email package, corresponding
 to the version of Python that the package was released with.  For purposes of
 this document, when you see a note about change or added versions, these refer
-to the Python version the change was made it, \emph{not} the email package
+to the Python version the change was made in, \emph{not} the email package
 version.  This table also describes the Python compatibility of each version
 of the package.
 
diff --git a/Doc/lib/libitertools.tex b/Doc/lib/libitertools.tex
index 19bc826..b4784a8 100644
--- a/Doc/lib/libitertools.tex
+++ b/Doc/lib/libitertools.tex
@@ -117,7 +117,7 @@
   Make an iterator that drops elements from the iterable as long as
   the predicate is true; afterwards, returns every element.  Note,
   the iterator does not produce \emph{any} output until the predicate
-  is true, so it may have a lengthy start-up time.  Equivalent to:
+  first becomes false, so it may have a lengthy start-up time.  Equivalent to:
 
   \begin{verbatim}
      def dropwhile(predicate, iterable):
@@ -509,8 +509,8 @@
     return izip(mapping.iterkeys(), mapping.itervalues())
 
 def nth(iterable, n):
-    "Returns the nth item or raise IndexError"
-    return list(islice(iterable, n, n+1))[0]
+    "Returns the nth item or raise StopIteration"
+    return islice(iterable, n, None).next()
 
 def all(seq, pred=None):
     "Returns True if pred(x) is true for every element in the iterable"
diff --git a/Doc/lib/libnis.tex b/Doc/lib/libnis.tex
index cc1482d..fe4acb5 100644
--- a/Doc/lib/libnis.tex
+++ b/Doc/lib/libnis.tex
@@ -2,7 +2,7 @@
          Interface to Sun's NIS (Yellow Pages)}
 
 \declaremodule{extension}{nis}
-  \platform{UNIX}
+  \platform{Unix}
 \moduleauthor{Fred Gansevles}{Fred.Gansevles@cs.utwente.nl}
 \sectionauthor{Moshe Zadka}{moshez@zadka.site.co.il}
 \modulesynopsis{Interface to Sun's NIS (Yellow Pages) library.}
diff --git a/Doc/lib/libsubprocess.tex b/Doc/lib/libsubprocess.tex
index dc386bf..e2a9bb6 100644
--- a/Doc/lib/libsubprocess.tex
+++ b/Doc/lib/libsubprocess.tex
@@ -145,6 +145,8 @@
 \begin{verbatim}
     check_call(["ls", "-l"])
 \end{verbatim}
+
+\versionadded{2.5}
 \end{funcdesc}
 
 \subsubsection{Exceptions}
diff --git a/Doc/lib/libtime.tex b/Doc/lib/libtime.tex
index e276045..8a45bfc 100644
--- a/Doc/lib/libtime.tex
+++ b/Doc/lib/libtime.tex
@@ -309,15 +309,23 @@
 \begin{funcdesc}{strptime}{string\optional{, format}}
 Parse a string representing a time according to a format.  The return 
 value is a \class{struct_time} as returned by \function{gmtime()} or
-\function{localtime()}.  The \var{format} parameter uses the same
-directives as those used by \function{strftime()}; it defaults to
-\code{"\%a \%b \%d \%H:\%M:\%S \%Y"} which matches the formatting
-returned by \function{ctime()}.  If \var{string} cannot be parsed
-according to \var{format}, \exception{ValueError} is raised.  If the
-string to be parsed has excess data after parsing,
-\exception{ValueError} is raised.  The default values used to fill in
-any missing data when more accurate values cannot be inferred are
-\code{(1900, 1, 1, 0, 0, 0, 0, 1, -1)} .
+\function{localtime()}.  
+
+The \var{format} parameter uses the same directives as those used by
+\function{strftime()}; it defaults to \code{"\%a \%b \%d \%H:\%M:\%S
+  \%Y"} which matches the formatting returned by \function{ctime()}.
+If \var{string} cannot be parsed according to \var{format}, or if it
+has excess data after parsing, \exception{ValueError} is raised.  The
+default values used to fill in any missing data when more accurate
+values cannot be inferred are \code{(1900, 1, 1, 0, 0, 0, 0, 1, -1)}.
+
+For example:
+
+\begin{verbatim}
+>>> import time
+>>> time.strptime("30 Nov 00", "%d %b %y")
+(2000, 11, 30, 0, 0, 0, 3, 335, -1)
+\end{verbatim}
 
 Support for the \code{\%Z} directive is based on the values contained in
 \code{tzname} and whether \code{daylight} is true.  Because of this,
diff --git a/Doc/lib/libwebbrowser.tex b/Doc/lib/libwebbrowser.tex
index 50366ba..5d5f236 100644
--- a/Doc/lib/libwebbrowser.tex
+++ b/Doc/lib/libwebbrowser.tex
@@ -47,7 +47,7 @@
 
 \begin{funcdesc}{open}{url\optional{, new=0\optional{, autoraise=1}}}
   Display \var{url} using the default browser. If \var{new} is 0, the
-  \var{url} is opened in the same browser window.  If \var{new} is 1,
+  \var{url} is opened in the same browser window if possible.  If \var{new} is 1,
   a new browser window is opened if possible.  If \var{new} is 2,
   a new browser page ("tab") is opened if possible.  If \var{autoraise} is
   true, the window is raised if possible (note that under many window
diff --git a/Doc/lib/libzipfile.tex b/Doc/lib/libzipfile.tex
index 6cdd1d3..366cee9 100644
--- a/Doc/lib/libzipfile.tex
+++ b/Doc/lib/libzipfile.tex
@@ -24,8 +24,8 @@
 
 The available attributes of this module are:
 
-\begin{excdesc}{error}
-  The error raised for bad ZIP files.
+\begin{excdesc}{BadZipfile}
+  The error raised for bad ZIP files (old name: \code{zipfile.error}).
 \end{excdesc}
 
 \begin{excdesc}{LargeZipFile}
@@ -90,7 +90,7 @@
   (a string) or a file-like object.  The \var{mode} parameter
   should be \code{'r'} to read an existing file, \code{'w'} to
   truncate and write a new file, or \code{'a'} to append to an
-  existing file.  For \var{mode} is \code{'a'} and \var{file}
+  existing file.  If \var{mode} is \code{'a'} and \var{file}
   refers to an existing ZIP file, then additional files are added to
   it.  If \var{file} does not refer to a ZIP file, then a new ZIP
   archive is appended to the file.  This is meant for adding a ZIP
@@ -128,7 +128,8 @@
 
 \begin{methoddesc}{getinfo}{name}
   Return a \class{ZipInfo} object with information about the archive
-  member \var{name}.
+  member \var{name}.  Calling \method{getinfo()} for a name not currently
+  contained in the archive will raise a \exception{KeyError}.
 \end{methoddesc}
 
 \begin{methoddesc}{infolist}{}
@@ -147,7 +148,9 @@
     parameter, if included, must be one of the following: \code{'r'} (the 
     default), \code{'U'}, or \code{'rU'}. Choosing \code{'U'} or 
     \code{'rU'} will enable universal newline support in the read-only
-    object. \var{pwd} is the password used for encrypted files.
+    object. \var{pwd} is the password used for encrypted files.  Calling 
+    \method{open()} on a closed ZipFile will raise a 
+    \exception{RuntimeError}.
     \begin{notice}
         The file-like object is read-only and provides the following methods:
         \method{read()}, \method{readline()}, \method{readlines()},
@@ -182,7 +185,8 @@
   Return the bytes of the file in the archive.  The archive must be
   open for read or append. \var{pwd} is the password used for encrypted 
   files and, if specified, it will override the default password set with
-  \method{setpassword()}.
+  \method{setpassword()}.  Calling \method{read()} on a closed ZipFile 
+  will raise a \exception{RuntimeError}.
 
   \versionchanged[\var{pwd} was added]{2.6}
 \end{methoddesc}
@@ -190,6 +194,8 @@
 \begin{methoddesc}{testzip}{}
   Read all the files in the archive and check their CRC's and file
   headers.  Return the name of the first bad file, or else return \code{None}.
+  Calling \method{testzip()} on a closed ZipFile will raise a
+  \exception{RuntimeError}.
 \end{methoddesc}
 
 \begin{methoddesc}{write}{filename\optional{, arcname\optional{,
@@ -200,7 +206,10 @@
   separators removed).  If given, \var{compress_type} overrides the
   value given for the \var{compression} parameter to the constructor
   for the new entry.  The archive must be open with mode \code{'w'}
-  or \code{'a'}.
+  or \code{'a'} -- calling \method{write()} on a ZipFile created with
+  mode \code{'r'} will raise a \exception{RuntimeError}.  Calling 
+  \method{write()} on a closed ZipFile will raise a 
+  \exception{RuntimeError}.
   
   \note{There is no official file name encoding for ZIP files.
   If you have unicode file names, please convert them to byte strings
@@ -210,6 +219,11 @@
 
   \note{Archive names should be relative to the archive root, that is,
         they should not start with a path separator.}
+
+  \note{If \code{arcname} (or \code{filename}, if \code{arcname} is 
+  not given) contains a null byte, the name of the file in the archive will
+  be truncated at the null byte.}
+
 \end{methoddesc}
 
 \begin{methoddesc}{writestr}{zinfo_or_arcname, bytes}
@@ -218,7 +232,10 @@
   \class{ZipInfo} instance.  If it's an instance, at least the
   filename, date, and time must be given.  If it's a name, the date
   and time is set to the current date and time. The archive must be
-  opened with mode \code{'w'} or \code{'a'}.
+  opened with mode \code{'w'} or \code{'a'} -- calling 
+  \method{writestr()} on a ZipFile created with mode \code{'r'} 
+  will raise a \exception{RuntimeError}.  Calling \method{writestr()}
+  on a closed ZipFile will raise a \exception{RuntimeError}.
 \end{methoddesc}
 
 
@@ -243,12 +260,13 @@
   available, else a \file{*.pyc} file, compiling if necessary.  If the
   pathname is a file, the filename must end with \file{.py}, and just
   the (corresponding \file{*.py[co]}) file is added at the top level
-  (no path information).  If it is a directory, and the directory is
-  not a package directory, then all the files \file{*.py[co]} are
-  added at the top level.  If the directory is a package directory,
-  then all \file{*.py[oc]} are added under the package name as a file
-  path, and if any subdirectories are package directories, all of
-  these are added recursively.  \var{basename} is intended for
+  (no path information).  If the pathname is a file that does not end with
+  \file{.py}, a \exception{RuntimeError} will be raised.  If it is a
+  directory, and the directory is not a package directory, then all the
+  files \file{*.py[co]} are added at the top level.  If the directory is
+  a package directory, then all \file{*.py[co]} are added under the package
+  name as a file path, and if any subdirectories are package directories, all
+  of these are added recursively.  \var{basename} is intended for
   internal use only.  The \method{writepy()} method makes archives
   with file names like this: