On Sat, Mar 22, 2014 at 5:16 AM, Mark H Harris <harrismh...@gmail.com> wrote: > On 3/21/14 12:42 PM, Marko Rauhamaa wrote: >> >> http://docs.python.org/3/library/subprocess.html#popen-constructor> > > >> It's got the optional close_fds parameter, which is True by default. > > >> IOW, you don't need to do anything if you use subprocess.Popen() to >> start your child process. Incidentally, that's the preferred way. > > > hi Marko, of course this depends on the environment; if unix-like, then yes, > elif windows well, not so much... > > There are caveats about stdin, stdout, and stderr; as well, there are > caveats about passing fds between the two. Well, Popen() is implemented on > unix and windows differently, so there is some study needed here if code is > going to be run in both environments.
There were some recent changes, though, including making CLOEXEC the default, which means that fork/exec on Unix will retain only the fds you actually want. ChrisA -- https://mail.python.org/mailman/listinfo/python-list
