Mention the os.SEEK_* constants

Doc/lib/libbz2.tex

@@ -90,10 +90,10 @@ performance optimizations previously implemented in the
 
 \begin{methoddesc}[BZ2File]{seek}{offset\optional{, whence}}
 Move to new file position. Argument \var{offset} is a byte count. Optional
-argument \var{whence} defaults to \code{0} (offset from start of file,
-offset should be \code{>= 0}); other values are \code{1} (move relative to
-current position, positive or negative), and \code{2} (move relative to end
-of file, usually negative, although many platforms allow seeking beyond
+argument \var{whence} defaults to \code{os.SEEK_SET} or \code{0} (offset from start of file;
+offset should be \code{>= 0}); other values are \code{os.SEEK_CUR} or \code{1} (move relative to
+current position; offset can be positive or negative), and \code{os.SEEK_END} or \code{2} (move relative to end
+of file; offset is usually negative, although many platforms allow seeking beyond
 the end of a file).
 
 Note that seeking of bz2 files is emulated, and depending on the parameters

Doc/lib/libmmap.tex

@@ -140,8 +140,9 @@ Memory-mapped file objects support the following methods:
 
 \begin{methoddesc}{seek}{pos\optional{, whence}}
   Set the file's current position.  \var{whence} argument is optional
-  and defaults to \code{0} (absolute file positioning); other values
-  are \code{1} (seek relative to the current position) and \code{2}
+  and defaults to \code{os.SEEK_SET} or \code{0} (absolute file
+  positioning); other values are \code{os.SEEK_CUR} or \code{1} (seek
+  relative to the current position) and \code{os.SEEK_END} or \code{2}
   (seek relative to the file's end).
 \end{methoddesc}
 

Doc/lib/libstdtypes.tex

@@ -1678,9 +1678,12 @@ flush the read-ahead buffer.
 
 \begin{methoddesc}[file]{seek}{offset\optional{, whence}}
   Set the file's current position, like \code{stdio}'s \cfunction{fseek()}.
-  The \var{whence} argument is optional and defaults to \code{0}
-  (absolute file positioning); other values are \code{1} (seek
-  relative to the current position) and \code{2} (seek relative to the
+  The \var{whence} argument is optional and defaults to 
+  \code{os.SEEK_SET} or \code{0}
+  (absolute file positioning); other values are \code{os.SEEK_CUR} or \code{1}
+  (seek
+  relative to the current position) and \code{os.SEEK_END} or \code{2} 
+  (seek relative to the
   file's end).  There is no return value.  Note that if the file is
   opened for appending (mode \code{'a'} or \code{'a+'}), any
   \method{seek()} operations will be undone at the next write.  If the