[Twisted-Python] Strange downloadPage behavior with embedded Python

[James Joplin]

Wow, I feel like an idiot now!  I never thought to test that.  Thank you so
much!

Is there any reason DNS would work in a standalone python app and when I
embed the library via the C API dns stops working?  Is there a library I
should import to fix that?

James

On Thu, Dec 4, 2008 at 10:43 AM, Jean-Paul Calderone <exarkun at divmod.com>wrote:

> On Thu, 4 Dec 2008 10:28:46 -0500, James Joplin <thejayjay at gmail.com>
> wrote:
>
>> We have been using python embedded via the C API and have used Twisted for
>> various things.  We have come across some strange behavior and I cannot
>> figure out what is going on.
>>
>>
>> from twisted.internet import reactor
>> from twisted.web.client import downloadPage
>>
>> ...
>>
>> def fetchRepo():
>>       global gameType, gameName, setupComplete, cp
>>       if (setupComplete):
>>               url = urlbase + "/" + gameType + "/" + gameName +
>> "/repo.ini"
>>               print "url is : " + url
>>               d = downloadPage(url, "C:\\svntest\\gamerepo.ini")
>>               d.addCallback(downloadSuccess)
>>               d.addErrback(downloadFailure)
>>               #cp.readfp(open("C:\\game-repo.ini"))
>>       else:
>>               print "urls not setup, throw errors etc."
>> ...
>>
>> This is an example of how we have been using downloadPage from
>> twisted.web.client.  I have no problems getting the example to work when I
>> make a simple app or write the code into the intrepeter.  But if I use it
>> inside my app I get the user timeout below.
>>
>> Unhandled error in Deferred:
>> Traceback (most recent call last):
>> Failure: twisted.internet.error.TimeoutError: User timeout caused
>> connection
>> failure.
>>
>>
>> Am I forgetting something trivial?  The reactor is running as we use PB
>> for
>> database pooling.  Can I not call downloadPage after a reactor is setup
>> and
>> connected?
>>
>
> Calling downloadPage after reactor.run is fine.  I'd take a look at DNS and
> firewall settings for problems there.
>
> Jean-Paul
>
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