[Python-Dev] Exposing different versions of a system call in Python

[Random832]

On Fri, Jan 19, 2018, at 04:28, Pablo Galindo Salgado wrote:
> On the other side, we have pipe and pipe2 as an example of exposing two
> versions when this situation happens.
> 
> The question is:
> 
> What is preferable, exposing both functions or augment the old one?

A large number, possibly a majority, of system calls in the os module, have "dir_fd" arguments that cause them to call the *at counterpart of the underlying system call. And chdir can also be called with a file descriptor, which will call fchdir (though there is also a fchdir function) I don't know why pipe2 was implemented as a separate call.