Bringing this back to the actual subject of the thread...

See

http://trac.sagemath.org/sage_trac/ticket/12619

The developer has the following followup too.


>>> Login into localhost at port 9000
>>> waiting... EmptyBlock 2
>>> finished handshake. Session id is 9b9c68446cc2caf65e14d5078ac9eedd
>>> sage> compute the summation of x when x ranges from 1 to 100.
>>> (3) 5050
>>> answer: it is 5050 .
>>> answer: it is 5050 .
>>>
>>> Two answers?
>>>
>>> Then I try again, and it hangs.
>>>
>>> sage> compute the summation of x when x ranges from 1 to 100.
>>> ^CTraceback (most recent call last):
>>>  File "start-nb.py", line 19, in <module>
>>>    signal.pause()
>>> KeyboardInterrupt
>>> Error: user interrupt
>>> Stopping server.
>>> gfsage: signalProcess: does not exist (No such process)
>>>
>>
>> It hangs just after 1 command?
>> I assume you are on OSX like me, but in my case, it hangs after 7 commands 
>> (as told in the "limitations" section)
>
> Correct.  Well, I'm on 10.6, so maybe it should hang after 6 commands.
>  I assume the "two answers" is part of the problem/diagnosis.
>
>
>> I assumed this is a bug in the sage api server, because it happens too using 
>> 2 python processes (1 listening, 1 sending the commands)
>
> I think that would be worth raising on the sage-devel list. You know
> the technical details, and they would know how to fix it, presumably.

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