[PyQt] [Errno 4] Interrupted system call

[Ismail Dönmez]

On Monday 28 May 2007 18:54:47 Jeremy Moskovich wrote:
> Hi,
> I'm having consistent problems using the python subprocess module in
> PyQT applications.
>
> os.read() & os.wait() calls seem to be interrupted intermittently, in a
> manner similar to the following stack trace:
>
> File "/homes/jeremym/programs/python2.5/lib/python2.5/subprocess.py",
> line 593, in __init__
> errread, errwrite)
> File "/homes/jeremym/programs/python2.5/lib/python2.5/subprocess.py",
> line 1046, in _execute_child
> data = os.read(errpipe_read, 1048576) # Exceptions limited to 1 MB
> OSError: [Errno 4] Interrupted system call
>
> The only mention I could find about this online is at:
> http://mail.python.org/pipermail/python-list/2007-February/427031.html
> which just recommends retrying the operation.
>
> Does anyone know what the root of this problem is? How can it be solved
> effectively

You might want to try the following patch  
http://librarian.launchpad.net/6820347/subprocess-eintr-safety.patch . The 
bug report is @ 
http://sourceforge.net/tracker/index.php?func=detail&aid=1068268&group_id=5470&atid=105470


/ismail

-- 
Perfect is the enemy of good
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