[Python-Dev] PEP 446: Add new parameters to configure the inherance of files and for non-blocking sockets

[Victor Stinner]

2013/7/4 Ronald Oussoren <ronaldoussoren at mac.com>:
>> The PEP 433 proposes adding an "e" mode to open in alternatives. I
>> didn't keep this idea because the fopen() function of the GNU libc
>> library has no mode for the O_NONBLOCK flag. IMO it is not interesting
>> to mention it in the PEP 466.
>
> I don't understand your reasoning, that is what has GNU libc to do with adding "e" mode to io.open?

The GNU libc supports fopen(filename, "re") to set O_CLOEXEC flag on
the file. I pick the idea into the PEP 433, in alternatives:
open(filename, "re") sets O_CLOEXEC flag on the file.

For the PEP 466, I only proposed the original API of the PEP 433:
open(filename, "r", cloexec=True).

Victor