emacs and python updating modules

Question

atm i'm using emacs to write some python code, so far it works quite fine except one problem that is really a bit annoying.

Always when I update something inside a self written module i reevaluate the buffer and the module in the python shell inside emacs doesn't get updated. i always have to end the python process and start it again to get the change. I figured out that emacs copies some things to a tmp dir to execute them, so i guess it has something to do with this.

Maybe someone out there had the same problem and solved it already so help would be appreciated

Answer 1

You have to reload the module manually in the shell in order for it to take effect.

See the documentation here on the Python reload function

I asked a similar question which you can see here

Answer 2

I found a better solution that needs no emacs config:

simply do

$ ipython profile create

that should create ipython profile in

$HOME/.ipython/profile_default/ipython_config.py  

then put the following inside

c = get_config()
c.TerminalInteractiveShell.editor = 'emacsclient'
c.InteractiveShellApp.extensions = [
     'autoreload'
]

c.InteractiveShellApp.exec_lines = []
c.InteractiveShellApp.exec_lines.append('%load_ext autoreload')
c.InteractiveShellApp.exec_lines.append('%autoreload 2')

then restart emacs. Now each time you save changes to file inside emacs - ipython would reload it automatically

and the following I have in my emacs config

;; ------------------
;; misc python config
;; ------------------
(company-mode -1)
(elpy-enable)
(elpy-use-ipython "ipython")
(setq python-shell-interpreter "ipython" python-shell-interpreter-args "--simple-prompt --pprint")
(setq python-check-command "flake8")
(setq elpy-rpc-backend "jedi")
(setq elpy-rpc-python-command "python")
; https://github.com/gregsexton/ob-ipython/issues/28
(setq python-shell-completion-native-enable nil)

if you want to see my full python config, it's here