Hi all.
When giving out a subprocess call (with subprocess.check_call) in any
event's callback function, nox gives out the following error.
00003|reactor|ERR:Unhandled Error
Traceback (most recent call last):
--- <exception caught here> ---
File "./nox/coreapps/pyrt/pyoxidereactor.py", line 85, in
__call__
self.func(*self.args, **self.kw);
File "./nox/coreapps/examples/pyswitch.py", line 110, in
timer_callback
subprocess.check_call('uname', shell=True)
File "/usr/lib/python2.6/subprocess.py", line 483, in
check_call
retcode = call(*popenargs, **kwargs)
File "/usr/lib/python2.6/subprocess.py", line 470, in call
return Popen(*popenargs, **kwargs).wait()
File "/usr/lib/python2.6/subprocess.py", line 1182, in wait
pid, sts = _eintr_retry_call(os.waitpid, self.pid, 0)
File "/usr/lib/python2.6/subprocess.py", line 455, in
_eintr_retry_call
return func(*args)
exceptions.TypeError: <lambda>() takes no arguments (2 given)
In the sample case I put a line <subprocess.check_call('uname',
shell=True)> in pyswitches timer_callback function. If I do the same in
some simple python application using twisted reactor, there are no
errors. Could someone explain why the error occurs and what is the
reason for it? I mean, I can ignore this error with a try-catch sentence
and everything seems ok, but am I then doing something that should not
be done for some good reason.
Thanks,
Tapio Partti
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