.dir-locals.el ipython can not work well

[hujianxin]

Description :octocat:

Specific ipython pointed at .dir-locals.el file works not well. There is a bit plank after prompt.

Reproduction guide :beetle:

• Start Emacs
• New python project
• Touch a .dir-locals.el file and add something blow into it.

  ((python-mode
  (python-shell-interpreter . "ipython")
  (python-shell-virtualenv-root . "env")
  (flycheck-python-flake8-executable . "env/bin/flake8")))

• , ' to start a ipython shell.

Observed behaviour: :eyes: :broken_heart:

In [1]:         import requests
In [1]: import requests

After the first In [1], before import requests, there is a bit plank which I can not remove.

Expected behaviour: :heart: :smile:

In [1]: import requests
In [1]: import requests

The text after In[x] can align well.

System Info :computer:

• OS: gnu/linux
• Emacs: 25.1.90.1
• Spacemacs: 0.200.5
• Spacemacs branch: develop (rev. 20741006)
• Graphic display: t
• Distribution: spacemacs
• Editing style: vim
• Completion: ivy
• Layers:

  (ivy
  (auto-completion :variables auto-completion-enable-snippets-in-popup t)
  better-defaults git version-control
  (shell :variables shell-default-height 30 shell-default-position 'bottom)
  ibuffer spell-checking syntax-checking
  (semantic :disabled-for emacs-lisp)
  org markdown html emacs-lisp javascript
  (c-c   :variables c-c  -enable-clang-support t)
  (ess :variables ess-enable-smart-equals nil ess-enable-smartparens t)
  (python :variables python-test-runner
       '(pytest nose))
  (scala :variables scala-auto-insert-asterisk-in-comments t)
  (clojure :variables clojure-enable-fancify-symbols t)
  sql shell-scripts yaml ranger imenu-list evil-cleverparens evil-snipe colors deft cscope gtags restclient all-the-icons)

• System configuration features: XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

[hujianxin]

If I use pyenv, all things are ok!

[hujianxin]

Because my poor English, I recordered a gif to describe this problem.

https://asciinema.org/a/55e8m1xf7bb5emdm0ay6mx0es

[d12frosted]

Hey, I am not sure, but I think that python-shell-virtualenv-root and flycheck-python-flake8-executable should be absolute file paths instead of relative to... whatever dir you run emacs -nw in 😸

[hujianxin]

@d12frosted Thanks for your rely, the same thing happens when I change to absolute file paths. And the result is the same when I change to UI Emacs.

[hujianxin]

IPython version: 5.1.0

[d12frosted]

Ok that was just a suggestion. Since I do no python coding, it was a blind one 😸

cc @TheBB @cpaulik I know you guys use Python 😸 Probably you can help here.

[pwalsh]

You need to add --simple-prompt --pprint args to the ipython interpreter call (python-shell-interpreter-args).

See https://emacs.stackexchange.com/questions/24750/emacs-freezes-with-ipython-5-0-0

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