Select in Python

[Dio]

K.S.Sreeram 写道：

> Dio wrote:
> > while 1:
> >     (rr, wr, er) = select([stdin], [], [])
> >     for fd in rr:
> >         print fd
> >
> > program block in the first select(), after I type something and "enter
> > ", it never block in select() again,why?
>
> select blocks until there is some data to read from stdin, but it does
> not *clear* the data. so once you enter data, select will not block
> until you read the data. once you're done reading the available data,
> you can again use select to block until more data is available.
>
> Regards
> Sreeram

Thanks a lot！I use stdin.readline() after select and it's ok :)