Why is $PATH in remote deployment path different from $PATH in remote system?

I'm currently working on Pycharm with remote python Interpreter(miniconda3/bin/python).

So when I type echo $PATH in remote server, it prints
/home/woosung/bin:/home/woosung/.local/bin:/home/woosung/miniconda3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

echo $PATH

/home/woosung/bin:/home/woosung/.local/bin:/home/woosung/miniconda3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

I created project in Pycharm and set remote python Interpreter as miniconda3 python, it works well when I just run some *.py files.

*.py

But when I typed some os.system() lines, weird things happened.

For instance, in test.py from Pycharm project

os.system()

test.py

import os

os.system('echo $PATH')
os.system('python --version')


Output is

ssh://woosung@xxx.xxx.xxx.xxx:xx/home/woosung/miniconda3/bin/python -u /tmp/pycharm_project_203/test.py
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
Python 2.7.12

Process finished with exit code 0


I tried same command in remote server,

woosung@test-pc:~$ echo $PATH
/home/woosung/bin:/home/woosung/.local/bin:/home/woosung/miniconda3/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
woosung@test-pc:~$ python --version
Python 3.6.6 :: Anaconda, Inc.


PATH and the version of python are totally different! How can I fix this?

I've already tried add os.system('export PATH="$PATH:$HOME/miniconda3/bin"') to test.py. But it still gives same $PATH.(/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games)

os.system('export PATH="$PATH:$HOME/miniconda3/bin"')

test.py

$PATH

/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

EDIT

Thanks to the comment of @Dietrich Epp, I successfully add interpreter path to the shell $PATH.
(os.environ["PATH"] += ":/home/woosung/miniconda3/bin")

But I stuck the more basic problem. When I add the path and execute command the some *.py file including import library which is only in miniconda3, the shell gives ImportError.

os.environ["PATH"] += ":/home/woosung/miniconda3/bin"

*.py

import

ImportError

For instance, in test.py

test.py

import matplotlib

os.environ["PATH"] += ":/home/woosung/miniconda3/bin"
os.system("python import_test.py")


and import_test.py

import_test.py

import matplotlib


And when I run test.py,

test.py

Traceback (most recent call last):
File "import_test.py", line 1, in <module>
import matplotlib
ImportError: No module named matplotlib


Looks like the shell doesn't understand how to utilize modified $PATH.

os.system('export PATH="$PATH:$HOME/miniconda3/bin"')

os.environ

1 Answer
1

I find the solution.

It is not direct but quite simple.

I changed os.system("python import_test.py") to os.system(sys.executable + ' import_test.py').

os.system("python import_test.py")

os.system(sys.executable + ' import_test.py')

This makes the shell uses the Pycharm remote interpreter(miniconda3), not original.

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.