import struct, fcntl, FCNTL
file = open(...)
-rv = fcntl(file.fileno(), FCNTL.O_NDELAY, 1)
+rv = fcntl(file.fileno(), FCNTL.F_SETFL, FCNTL.O_NDELAY)
lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)
rv = fcntl.fcntl(file.fileno(), FCNTL.F_SETLKW, lockdata)
\end{verbatim}
-Note that in the first example the return value variable \code{rv} will
+Note that in the first example the return value variable \var{rv} will
hold an integer value; in the second example it will hold a string
value. The structure lay-out for the \var{lockdata} variable is
system dependent --- therefore using the \function{flock()} call may be