os.environ['PATH'] will raise KeyError(key) when using Ctrl+F5 or only F5.

[KryptonLee]

Environment data

VS Code version: 1.19.0
Python Extension version: 0.9.0
Python Version: 3.5.2
OS and version: Ubuntu 16.04 64bit

Actual behavior

os.environ['PATH'] will raise KeyError(key) when running a program using Ctrl+F5 or only F5.
But everything is fine when running the program in the console.

Expected behavior

os.environ['PATH'] should get the environment variable PATH.

Steps to reproduce:

• Update Python Extension to version 0.9.0
• Run a program with code "import os; print(os.environ['PATH'])" using Ctrl+F5 or only F5

[QQQYang]

@KryptonLee Hi, I met the same issue. How to solve it?

[DonJayamanne]

@KryptonLee this will be fixed in the best release.

[Ansarimi]

I still see this problem. Why was this closed?

[DonJayamanne]

It has been closed as the issue has been fixed. We haven't released a new version with the fixes though.
@KryptonLee @Ansarimi @QQQYang Please could you install the insiders build and confirm this works as expected. Here's the link with instructions https://github.com/Microsoft/vscode-python/blob/master/CONTRIBUTING.md#insiders-build

[huppyflup]

I had the same issue.
Python Extension: 0.9.1
vscode: 1.19.2
Python: 3.6.3
OS: Ubuntu 17.10

2018.1.0-alpha works as expected.

[creepteks]

I still have this problem. I'm on latest vscode version. should I use insiders build to solve this problem?
I used venv inside my working directory.

Traceback (most recent call last):
File "/home/neo/code/stego_wavelets/wave.py", line 1, in
import pywt
File "/home/neo/code/stego_wavelets/lib/python3.5/site-packages/pywt/init.py", line 16, in
from ._extensions._pywt import *
File "init.pxd", line 155, in init pywt._extensions._pywt (pywt/_extensions/_pywt.c:32567)
File "/home/neo/code/stego_wavelets/lib/python3.5/site-packages/numpy/init.py", line 126, in
from numpy.config import show as show_config
File "/home/neo/code/stego_wavelets/lib/python3.5/site-packages/numpy/config.py", line 9, in
os.environ["PATH"] += os.pathsep + extra_dll_dir
File "/usr/lib/python3.5/os.py", line 725, in getitem
raise KeyError(key) from None
KeyError: 'PATH'

this is my project launch.json python debug config:
{
"name": "Python",
"type": "python",
"request": "launch",
"stopOnEntry": true,
"pythonPath": "${config:python.pythonPath}",
"program": "${file}",
"cwd": "${workspaceFolder}",
"env": {},
"envFile": "${workspaceFolder}/.env",
"debugOptions": [
"RedirectOutput"
]
}...

this is my user settings:
{
"python.pythonPath": "${workspaceRoot}/bin/python3",
}

is there something wrong with my config or what??? please help me.

[DonJayamanne]

@Mahdad-Baghani

should I use insiders build to solve this problem?

Yes please

[creepteks]

I Installed vscode insiders 1.20, still have the same problem.

[DonJayamanne]

@ericsnowcurrently please could you check whether you are able to replicate this using the insiders build?

[DonJayamanne]

Could be due to the different (or incorrect) names of the PATH variables in https://github.com/Microsoft/vscode-python/blob/master/src/client/common/platform/platformService.ts.

Could be related to #601

[DonJayamanne]

@Mahdad-Baghani you need to install the insiders build of the extension, please install it from here (instructions included). https://github.com/Microsoft/vscode-python/blob/master/CONTRIBUTING.md#insiders-build

[ericsnowcurrently]

I verified that using 0.9.1 running import os; print(os.environ['PATH']) fails and using the insiders build it works.

[AlexandreOuellet]

I have both insider build 1.20 and insider extension for python, and I also get the same error :

import os; print(os.environ['PATH'])

Traceback (most recent call last):
File "/home/alexandre/gym/test.py", line 1, in
import os; print(os.environ['PATH'])
File "/home/alexandre/miniconda3/envs/openai-gym/lib/python3.6/os.py", line 669, in getitem
raise KeyError(key) from None
KeyError: 'PATH'

The one difference that made it work on my side though is if I launch with the option "Python: Terminal (integrated)", it works, but the usual "Python" launch setting doesn't work.

[bbcCorp]

I faced this issue with some other Python libraries. Till the new version of VSCode is released, I have added a .env file with

PATH=$PATH

That seems to solve the issue for me and I am able to use Python debugger.

[DonJayamanne]

@AlexandreOuellet @bbcCorp

• What is your OS?
• Please could you install the latest version of the insiders build of the extension from here (the new version has a couple of more fixes). (Downloads Python insiders build)

@bbcCorp

• Please could you debugging using the following three debug configurations (please remove the .env file you created):
  • Python
  • Python Terminal (Integrated)
  • Python Terminal (External)

[AlexandreOuellet]

@DonJayamanne My os is Ubuntu 17.10. The updated python insiders build extension seems to have worked.

import os; print(os.environ['PATH'])
no longer creates the KeyError: 'PATH'

Thanks a lot!

[bbcCorp]

@DonJayamanne : I am using Mint Linux on Ubuntu 16.04.3 LTS (Xenial Xerus)

I removed the .env file and installed the insider build version. I can debug. So that resolves the problem for me. Thanks.

[Krishna1408]

Hi Team,

I am using: Red Hat Enterprise Linux Server release 7.4 (Maipo)
Python Version: 3.6.3

I am also getting the same kind of error. I've set environment variables as: MP_IP . I am calling them using: mpip=os.environ["MP_IP"]

I am getting below error:

Traceback (most recent call last):
  File "orgAssociate/MpAssociation.py", line 9, in <module>
    mpip=os.environ["MP_IP"]
  File "/usr/local/lib/python3.6/os.py", line 669, in __getitem__
    raise KeyError(key) from None
KeyError: 'MP_IP'

I am running it using: sudo /usr/local/bin/python3.6 orgAssociate/Association.py

Can you please suggest what can be done for it?

[DonJayamanne]

Please create a separate issue.