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

[Grant Edwards]

In article <2b57f654.0203151009.296bb7da at posting.google.com>, wealthychef wrote:
> grante at visi.com (Grant Edwards) wrote in message news:<slrna92u5t.8oq.grante at tuxtop.visi.com>...
>> In article <2b57f654.0203141934.391d1bcc at posting.google.com>, wealthychef wrote:
>> 
>> >         selectables = [theProcess.childerr, theProcess.fromchild]
>> >         (input, output, exc) = select.select([],selectables, selectables)
>> 
>> It looks like you've got the first two parameters to select
>> reversed.  After the above call, output is going to contain
>> writable sockets.  If you're wanting to read data, you should
>> do:
>> 
>>           (output, input, exc) = select.select(selectables,[],selectables)
> 
> Ding ding ding!  You are correct, sir!  Thanks for the help, I was
> doing it backwards.  The python docs are a bit unclear to me on this
> point.  Thanks for the help, it now works perfectly as expectorated.

Here's hint: Many of the Python libraries are just thin
wrappers around the standard OS library calls.  Doing a "man
select" will get you more detailed information that may help
you understand the Python docs better.  Sometimes not.

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