[Image-SIG] StringIO seems to garble images in cgi

Jack Jansen Jack.Jansen@oratrix.com
Sun, 8 Dec 2002 23:39:57 +0100

On vrijdag, dec 6, 2002, at 22:43 Europe/Amsterdam, 
Doug.Shawhan@gecits.ge.com wrote:

> The following almost works, unfortunately the image comes out garbled. 
> I
> have tried a variety of images in case they are somehow corrupt- no 
> dice. Am
> I missing a step?

As you're using normal write() calls to sys.stdout you'll be messing up 
your \r and \n bytes in the image: sys.stdout is a text-mode file so 
you can't write binary data to it. At least: not on Windows. You'll 
have to somehow reopen the file in binary mode, but whether the unix 
idiom of
fp = os.fdopen(sys.stdout.fileno(), 'wb')
works on Windows remains to be seen...
- Jack Jansen        <Jack.Jansen@oratrix.com>        
http://www.cwi.nl/~jack -
- If I can't dance I don't want to be part of your revolution -- Emma 
Goldman -