readline() blocks after select() says there's data??

[Grant Edwards]

In article <2b57f654.0203151021.7f709e4c at posting.google.com>, wealthychef wrote:
> "Donn Cave" <donn at drizzle.com> wrote in message news:<1016173476.645562 at yasure>...
>> Quoth grante at visi.com (Grant Edwards):
>> ...
>> | When select returns a file descriptor, that means that read()
>> | won't block.  If only a partial line is available, then
>> | readline() will still block.  I doubt that this is going to be
>> | an issue, since your output is probably line-oriented.

> If it is not line-oriented, must I then use select.select combined
> with read(1) and go character by character?

No, you can read all the available data with a single call to
read.  The value you pass to read is just a maximum, and read
will return as much data as it can.

I think this would be an excellent use for a generator. But if
you've never done any co-routine stuff before it can be a bit
disorienting.

> That reminds me, is there a way to get the integer value of a
> character in Python analogous to casting a char to an int in C?

c = "A"
i = ord(c)

-- 
Grant Edwards                   grante             Yow!  Did YOU find a
                                  at               DIGITAL WATCH in YOUR box
                               visi.com            of VELVEETA?