Question about propagating universal_newlines through subprocess.Popen to io.TextIOWrapper

[Bill Deegan]

On Mon, Jun 26, 2017 at 2:22 PM, eryk sun <eryksun at gmail.com> wrote:

> On Mon, Jun 26, 2017 at 8:59 PM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
> >
> > Ideally (for my use case) it would be something which propagated
> > universal_newlines to io.TextIOWrapper().. rather than discards it.
> > In my case I want the stdout to be encoded utf-8, but I do not want \r's
> > changed to \n's as my test system is capturing the output of a progress
> > indicator which uses \r to return to beginning of line and overwrite the
> > previous output.
>
> An enhancement issue can be created for 3.7, but this is new behavior
> that certainly won't be backported to 3.6. For now you'll have to do
> it yourself. Leave out the encoding argument, and manually wrap
> p.stdout with an io.TextIOWrapper that sets the newline argument to an
> empty string.
>

O.k. I'll file an enhancement.  Seems like propagating the values would be
better functionality.

Thanks!
-Bill