Warning about system python in MacOS but correctly uses virtualenv

[tommyblue]

Environment data

VS Code version: 1.20.1
Python Extension version: 2018.1.0
Python Version: 3.5.4 and 2.7.10
OS and version: MacOS 10.13.3

Actual behavior

VSCode shows a warning: "Selected interpreter is macOS system python which is not recommended. Please select different interpreter" but the venv version (3.5.4) is correctly selected (see screenshot) and seems to be correctly used (the system version is 2.7.10).

Expected behavior

The warning shouldn't be shown

Steps to reproduce:

• cd to the project folder
• activate the virtualenv
• code .

Logs

Output from Python output panel

##########Linting Output - flake8##########
Traceback (most recent call last):
  File "/usr/local/bin/flake8", line 11, in <module>
    load_entry_point('flake8==3.5.0', 'console_scripts', 'flake8')()
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/main/cli.py", line 16, in main
    app.run(argv)
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/main/application.py", line 396, in run
    self._run(argv)
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/main/application.py", line 383, in _run
    self.initialize(argv)
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/main/application.py", line 361, in initialize
    self.parse_preliminary_options_and_args(argv)
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/main/application.py", line 133, in parse_preliminary_options_and_args
    opts, args = self.option_manager.parse_known_args(args)
  File "/usr/local/Cellar/flake8/3.5.0/libexec/lib/python2.7/site-packages/flake8/options/manager.py", line 307, in parse_known_args
    self.parser.largs.append(err.opt_str)
AttributeError: 'OptionValueError' object has no attribute 'opt_str'
##########Linting Output - pylint##########
No config file found, using default configuration
##########Linting Output - mypy##########

Output from Console window (Help->Developer Tools menu)

[MikhailArkhipov]

If it is annoying you, you can set disableInstallationChecks to true in settings

[tommyblue]

well, thanks for the suggestion, but it's not a matter of be annoyed 😀
It's that the message is wrong, the editor acts differently from what it says

[DonJayamanne]

Please could you install the Insiders build of the extension (see here under Insiders Build).
Please install that and re-test. It may be fixed in the master branch (soon to be released).

[MikhailArkhipov]

Yes, we are working on the fix. I just meant temp workaround.

[tommyblue]

@DonJayamanne unfortunately the issue persists with the insider build (2018.2.0-alpha)

[rpranshu]

why not add an interpreter menu in the IDE itself to select the interpreter from the system?

[tommyblue]

@rpranshu I think you're talking of the menu you get if you click on the python version in the bottom bar.

[DonJayamanne]

Will look into this.

@MikhailArkhipov
We need to perform the check after seeing the interpreter.

  const pythonInstaller = new PythonInstaller(serviceContainer);
    pythonInstaller.checkPythonInstallation(PythonSettings.getInstance())
        .catch(ex => console.error('Python Extension: pythonInstaller.checkPythonInstallation', ex));

    // This must be completed before we can continue.
    await interpreterManager.autoSetInterpreter();

Also shouldn't we be looking for just the Osx python installs instead of checking if the phon installation is undefined (i.e. if all interpreters in the list start with /usr/bin/python or similar then they are the OSX interpreters that aren't supported). Not sure if we're also checking the os.

[MaherBouidani]

Yes, It keeps appearing for me as well as "Linting is not installed.....install" and when I clicked on install "Linting could not be found"

[MattCraftsCode]

add this key-value line in vscode settings:

"python.pythonPath": "/usr/bin/python"

[cristtopher]

@heshiweij after add it, still appears message

[brettcannon]

Please open a new issue if you're incorrectly getting the banner.

[muzi131313]

Configuring Python environments :

1. ⇧⌘P
2. input the words: python: s, and choose [python: Select Interpreter]
3. select a appropriate version you need in your project

===============
if your install your python by yum, and you was not able to uninstall system's python, you can set alias in your .bash_profile:

alias python=/usr/local/bin/python3

and then： source .bash_profile
check work well or not by the command:

python -V