Thread: [Python-sybase-misc] Thread locking bug, look familiar?

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python-sybase-misc

[Python-sybase-misc] Thread locking bug, look familiar?

From: Harri P. <har...@tr...> - 2007-05-25 17:13:03

I'm getting this with Python 2.5 on Windows, Sybase module 0.38

    while c.nextset(): 
  File "..\site-packages\Sybase.py", line 837, in nextset 
    desc = self._fetcher.nextset() 
  File "..\site-packages\Sybase.py", line 627, in nextset 
    self._unlock()
  File "..\site-packages\Sybase.py", line 466, in _unlock 
    self._owner._unlock() 
  File "..\site-packages\Sybase.py", line 996, in _unlock 
    self._connlock.release() 
  File "..\lib\threading.py", line 1 
15, in release 
    assert self.__owner is me, "release() of un-acquire()d lock" 
AssertionError: release() of un-acquire()d lock 
Exception thread.error: 'release unlocked lock' in <bound method 
_FetchLazy.__del__ of <Sybase._FetchLazy instance at 0x00A02AD0>> 
ignored 

I wonder if it looks familiar to anyone?

-Harri
 


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Re: [Python-sybase-misc] Thread locking bug, look familiar?

From: Harri P. <har...@wa...> - 2007-05-25 17:13:03

Hmm... actually it seems this is surfacing on Python 2.5.1, but on 
Python 2.5 it works.  And the same problem seems to affect Linux 
(RedHat, 64 bit).  

Has anyone use python-sybase-0.38 with Python 2.5.1?   

It is possible that my problem comes from something else, but so far 
only difference I'm aware of is the python version.  



-Harri


On Tuesday 15 May 2007 17:49:52 Harri Pasanen wrote:
> I'm getting this with Python 2.5 on Windows, Sybase module 0.38
>
>     while c.nextset():
>   File "..\site-packages\Sybase.py", line 837, in nextset
>     desc = self._fetcher.nextset()
>   File "..\site-packages\Sybase.py", line 627, in nextset
>     self._unlock()
>   File "..\site-packages\Sybase.py", line 466, in _unlock
>     self._owner._unlock()
>   File "..\site-packages\Sybase.py", line 996, in _unlock
>     self._connlock.release()
>   File "..\lib\threading.py", line 1
> 15, in release
>     assert self.__owner is me, "release() of un-acquire()d lock"
> AssertionError: release() of un-acquire()d lock
> Exception thread.error: 'release unlocked lock' in <bound method
> _FetchLazy.__del__ of <Sybase._FetchLazy instance at 0x00A02AD0>>
> ignored
>
> I wonder if it looks familiar to anyone?
>
> -Harri
>
>
>
> Privileged or confidential information may be contained in this
> message.  If you are not the addressee of this message please
> notify the sender by return and thereafter delete the message, and
> you may not use, copy, disclose or rely on the information
> contained in it. Internet e-mail may be susceptible to data
> corruption, interception and unauthorised amendment for which Wall
> Street Systems does not accept liability. Whilst we have taken
> reasonable precautions to ensure that this e-mail and any
> attachments have been swept for viruses, Wall Street Systems does
> not accept liability for any damage sustained as a result of
> viruses.  Statements in this message or attachments that do not
> relate to the business of  Wall Street Systems are neither given
> nor endorsed by the company or its Directors.
>
>
> -------------------------------------------------------------------
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Re: [Python-sybase-misc] Thread locking bug, look familiar?

From: <sa...@po...> - 2007-05-25 17:13:03

Hi Harry,

I run python-sybase 0.38 with Python 2.5.1 on a linux system (not 64 
bits however) and I don't have any problem.

Have you run the test suite on your system and is there any failure? 
Otherwise could you write a small unitary test to illustrate the problem?


regards

--
Sébastien Sablé


Harri Pasanen a écrit :
> Hmm... actually it seems this is surfacing on Python 2.5.1, but on 
> Python 2.5 it works.  And the same problem seems to affect Linux 
> (RedHat, 64 bit).  
> 
> Has anyone use python-sybase-0.38 with Python 2.5.1?   
> 
> It is possible that my problem comes from something else, but so far 
> only difference I'm aware of is the python version.  
> 
> 
> 
> -Harri

Re: [Python-sybase-misc] Thread locking bug, look familiar?

From: Harri P. <har...@tr...> - 2007-05-25 17:13:03

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Re: [Python-sybase-misc] Thread locking bug, look familiar?

From: Harri P. <har...@tr...> - 2007-05-25 17:13:03

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