[Zope] popen2 problem with Zope 2.7.0 and Photo

[Ausum Studio]

I tried to reproduce the error on my w2k box (with Zope 2.7.0 on a regular
installation of Python 2.3.3, not the bundled version.), but it didn't
happen. Guess that reduces the problem to Linux.

I sugest to place the offending line in a try statement, and see what
happens:
try:
    imgin.write(origimg._IMdata())
except:
    raise


HTH

Ausum


----- Original Message ----- 
From: "Troy Farrell" <troy at entheossoft.com>
To: <zope at zope.org>
Sent: Monday, February 16, 2004 10:53 AM
Subject: [Zope] popen2 problem with Zope 2.7.0 and Photo


> Greetings Zopistas.
> Since I've upgraded from 2.6.2 to 2.7.0, the following product code causes
> zope to hang:
>
>   elif engine == 'ImageMagick':  # Use ImageMagick
>     if sys.platform == 'win32':
>       from win32pipe import popen2
>       imgin, imgout = popen2('convert -quality %s -geometry %sx%s - -'
>                              % (quality, width, height), 'b')
>     else:
>       print "Started popen2\n"
>       from popen2 import popen2
>       imgout, imgin = popen2('convert -quality %s -geometry %sx%s - -'
>                              % (quality, width, height))
>     print "Writing to stdin"
>     imgin.write(origimg._IMdata())
>     print "Finished writing to stdin\n"
>     imgin.close()
>     newimg.write(imgout.read())
>     imgout.close()
>
> When I run zope in debug mode, I see "Started popen2" and the "Writing to
> stdin", but the process never gets to "Finished writing to stdin."
> Furthermore, zope will no longer respond to requests until I restart it.
> I already verified that origimg._IMdata() doesn't hang.  I am using Photo
> 1.2.3 from http://zope.org/Members/rbickers/Photo/ with ImageMagick on
> Linux 2.2.20.
>
> Any hints?
>
> Thanks.
> Troy
>
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