How to run a python program in one folder and import and run a python program from another folder

Question

Good evening.

I have scriptone.py in folderone and scripttwo.py in foldertwo.

How do I tell scriptone.py to run scripttwo.py from foldertwo

If both scriptone.py and scripttwo.py are in the same folder I can run scripttwo.py with

import scripttwo

But I would really like to run scripttwo.py from foldertwo

Thankyou.

score 1 · Accepted Answer · answered Nov 25 '15 at 23:58

1

Look at the environmental variable PYTHONPATH or sys.path.

answered Nov 25 '15 at 23:58

iAdjunct

score 0 · Answer 2 · answered Nov 26 '15 at 00:05

0

This is how I did it in the past:

import os
os.chdir('../foldertwo')
import sys
sys.path.append(os.getcwd())

import scripttwo

This adds the parent folder to the path variable, which holds all the places that Python looks for module when you use import.

answered Nov 26 '15 at 00:05

El'endia Starman

In foldertwo a scripttwo.pyo file is created after running. why is this, what is it for and can it be deleted after running the script? – Simon Jeal Nov 26 '15 at 00:36
@SimonJeal: I don't typically see `.pyo` files, so I'm not totally sure why that would be. [This question](http://stackoverflow.com/q/8822335/1473772) should help. – El'endia Starman Nov 26 '15 at 00:38
Thanks I just read that. Im going to go with I can delete it, as my scripttwo.py will always change. thanks – Simon Jeal Nov 26 '15 at 00:40

score -1 · Answer 3 · answered Nov 26 '15 at 00:22

Thanks Adjuct

I used

import sys

secondscript = path/to/second/script
sys.path.append(secondscript)

import scripttwo

Working Solved.

By using sys.path.append() it tells python that there is another place to look for a script. So when you

import scripttwo

it knows to look in the appended location also. Thank you for the advice

3 Answers3