[Python-Dev] Release or not release the GIL

[Richard Oudkerk]

On 01/02/2013 1:44am, Guido van Rossum wrote:
> I'm guessing those system calls are just implemented by the kernel and
> cannot block for I/O, so it was deemed unnecessary to release the GIL
> around them. I don't mind changing that though, you can never know
> what happens when you make a system call.

close() can block, so I assume the same is true of dup2(), since 
dup2(oldfd, newfd) closes oldfd.

-- 
Richard