Emacs - Path to Python interpreter

Question

I've got python 3.6 in this directory:

D:\Python36

How can I set in .emacs path to python 3.6 interpreter?

Set that path for what? A guess is that you want to be able to invoke the external Python interpreter from Emacs. If so, it sounds like you just need to ensure that it is reachable from your Path environment variable. That's not really an Emacs question. It seems you are on MS Windows. Go to Control Panel > System > Advanced System Settings > Environment Variables, and update variable Path (or add the var if not there). — Drew, Jul 1, 2017 at 18:38
Please do not post the same question to StackOverflow and SE.emacs. Pick one or the other. Please delete one of the posts. Thx. — Drew, Jul 1, 2017 at 18:40
Thx for answer. I want to use Python 3.6 interpreter, something like this: (setq py-python-command "/usr/local/bin/python2.3") — jestembotem, Jul 1, 2017 at 18:43

eflanigan00 · Accepted Answer · 2017-07-02 18:58:50Z

3

(setq exec-path (append exec-path '("d:/Python36/")))

answered Jul 2, 2017 at 18:58

eflanigan00

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Where shall one write this? Isn't exec-path too generic?
– VP.
Feb 11, 2020 at 13:06

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Chillar Anand · Accepted Answer · 2017-07-02 12:54:08Z

4

python-shell-interpreter is the variable you are looking for. You can set it using

(setq python-shell-interpreter "D:\Python36")

Add this to your .emacs and reload python process.

answered Jul 2, 2017 at 12:54

Chillar Anand

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Thanks for answer, but it gives me error: Specified program for new process is a directory. I'm using elpy.
– jestembotem
Jul 2, 2017 at 16:02
You should set path to executable like D:\Python36\python.
– Chillar Anand
Jul 2, 2017 at 16:04
Now I've got this error :spawning child process invalid argument
– jestembotem
Jul 2, 2017 at 16:11
Use forward slashes instead: D:/Python36/python. Backslash has a special meaning in Emacs, so if you want to use them, you have to escape them first (with, incidentally, a backslash) like so: C:\\Python36\\python. As you can see, it's easier to just use forward slashes instead.
– Enfors
Feb 11, 2021 at 10:20

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2 Answers 2