[Python-Dev] Raise OSError or RuntimeError in the OS module?

Georg Brandl g.brandl at gmx.net
Tue May 3 20:30:22 CEST 2011

On 02.05.2011 12:06, Victor Stinner wrote:
> Hi,
> I introduced recently the signal.pthread_sigmask() function (issue #8407). 
> pthread_sigmask() (the C function) returns an error code using errno codes. I 
> choosed to raise a RuntimeError using this error code, but I am not sure that 
> RuntimeError is the best choice. It is more an OS error than a runtime error: 
> should signal.pthread_sigmask() raise an OSError instead?
> signal.signal() raises a RuntimeError if setting the signal handler failed. 
> signal.siginterrupt() raises also a RuntimeError on error.
> signal.setitimer() and signal.getitimer() have their own exception class: 
> signal.ItimerError, raised on setimer() and getitimer() error.

If it has an errno, it should be a subclass of EnvironmentError.


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