Matthew Cowles <mdcow...@users.sourceforge.net> added the comment:

[Replying to various posts]

[neologix]
> That's one broken networking stack...

I'm not disagreeing, but you'd have to take that up with Apple.

> How would you circumvent this problem anyway ?

The code has to go around again in the case of an incomplete send. I imagine 
that it could go around again if the return value was -1 and errno was 35. 
Doing that in Python fixed the problem for the user.

[pitrou]
> Matthew, can you confirm whether the socket had a timeout set to it?
> (either through settimeout() or setglobaltimeout())

I double- and triple-checked that the user wasn't setting a timeout. The 
problem came up in the context of the ftplib module and a look at the code (it 
was Python 2.6.2) suggests that that module doesn't set a timeout unless you 
ask it to.

[neologix]
> Maybe it would help to have the sample code ?

I'm sorry but I can't quite tell which code you mean here. The original user's 
traceback ended with:

File "/Library/Frameworks/Python.framework/Versions/
        2.6/lib/python2.6/ftplib.py",
line 452, in storbinary
    conn.sendall(buf)
    File "<string>", line 1, in sendall
error: [Errno 35] Resource temporarily unavailable

If there's something else that would be useful and I can provide it, I'd be 
glad to.

----------

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<http://bugs.python.org/issue8493>
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