bug#32042: 26.1; python.el with ipython prompt leads to superfluous interactive shell output

[Jaan Altosaar]

Thanks! It looks like it's the anaconda readline:

```

Python 3.6.6 |Anaconda custom (64-bit)| (default, Jun 28 2018, 11:07:29)

Type 'copyright', 'credits' or 'license' for more information

IPython 6.4.0 -- An enhanced Interactive Python. Type '?' for help.

>>> import readline; print(readline.__doc__); print(readline.__file__)

Importing this module enables command line editing using GNU readline.

/usr/local/anaconda3/lib/python3.6/site-packages/readline.cpython-36m-darwin.so

```

I tried using gnureadline too but get the same broken output.

```

>>> import readline

>>> print(readline.__doc__); print(readline.__file__)

Importing this module enables command line editing using GNU readline.

/usr/local/anaconda3/lib/python3.6/site-packages/readline.py

>>> cat /usr/local/anaconda3/lib/python3.6/site-packages/readline.py

from gnureadline import *

from gnureadline import __doc__

```

On Monday, July 9, 2018, Noam Postavsky <npostavs@gmail.com> wrote:
> On 9 July 2018 at 08:59, Jaan Altosaar <altosaar@princeton.edu> wrote:
> > My bad! Reply alling to keep 32042@debbugs.gnu.org in cc. Hope this works—
>
> > Still getting the same broken output.
> >
> > Any other ideas?
>
> Can you show the result of the python expressions at the bottom of
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=32042#19