\begin{funcdesc}{loop}{\optional{timeout\optional{, use_poll\optional{,
map\optional{,count}}}}}
Enter a polling loop that terminates after count passes or all open
- channels have been closed. All arguments are optional. The \var(count)
+ channels have been closed. All arguments are optional. The \var{count}
parameter defaults to None, resulting in the loop terminating only
when all channels have been closed. The \var{timeout} argument sets the
timeout parameter for the appropriate \function{select()} or