[Duplicity-talk] Fix/workaround for "Caught a socket error" S3 problem on Mac OS

[Eyvind Bernhardsen]

Hi,

After installing Python 2.5.1 to run a recent version of Duplicity on  
my Mac, I got lots of "Caught a socket error, trying to recover"--and  
no backup--when I tried to back my system up to Amazon S3.  I found  
some other reports of this on the list, and when I googled around for  
a solution, it looked a lot like a known issue with the boto library.   
Unfortunately, that issue was still unresolved, so I decided to do a  
little digging.

I'm not sure what the root cause of the problem is yet, but applying  
the attached patch to httplib.py fixes duplicity for me.  You can find  
httplib.py in your Python library directory, usually somewhere like / 
usr/local/lib/python2.5 or /Library/Frameworks/Python.framework/ 
Versions/2.5/lib/python2.5/httplib.py.

httplib.patch
Description: Binary data

Please see the boto bug page for a brief explanation:

        http://code.google.com/p/boto/issues/detail?id=89

Note that this patch is just a workaround for a bug which I've only  
seen with Pythons I've built myself.  Leopard's Python 2.5 works fine  
for me, and Tiger's 2.3 did too (until Duplicity started requiring  
2.4).  The patch should be harmless, in any case.

Eyvind Bernhardsen