"Linter pylint is not installed" when changing settings.json

[Zvezdin]

Environment data

VS Code version:
1.18.1-1
Python Extension version:
0.8.0
Python Version:
3.6.3
OS and version:

Arch Linux x64

Actual behavior

When adding the following line to my user setings: "python.linting.pylintArgs": ["--disable=W0312"], I get an error message, that pylint is not installed (it is). If I remove the argument, so the line becomes "python.linting.pylintArgs": [], the error doesn't show up and linting works without problems.

Outside of VSCode, running python -m pylint testscript.py --disable=W0312 works as expected.

Expected behavior

Pylint should work with that one warning disabled. VSCode shouldn't throw that error, since it is misleading and incorrect.

Steps to reproduce:

Have VSCode install pylint for you. Add "python.linting.pylintArgs": ["disable=W0312"] to your user settings.

Logs

Output from Python output panel

Linting with pylint failed.
You could either install the 'pylint' linter or turn it off in setings.json via "python.linting.pylintEnabled = false".
Error: spawn pylint ENOENT

Output from Console window (Help->Develop

Linter pylint is not installed (messageService.ts:126)

e.doShow | @ | messageService.ts:126
-- | -- | --
  | e.show | @ | messageService.ts:105
  | e._showMessage | @ | mainThreadMessageService.ts:72
  | n.Class.derive._oncancel | @ | winjs.base.raw.js:1641
  | e._showMessage | @ | mainThreadMessageService.ts:42
  | e.$showMessage | @ | mainThreadMessageService.ts:36
  | e.invoke | @ | abstractThreadService.ts:41
  | e._invokeHandler | @ | rpcProtocol.ts:109
  | e._receiveOneMessage | @ | rpcProtocol.ts:96
  | (anonymous) | @ | rpcProtocol.ts:32
  | (anonymous) | @ | rpcProtocol.ts:157
  | e.invoke | @ | callbackList.ts:36
  | e.fire | @ | event.ts:123
  | (anonymous) | @ | ipc.net.ts:82
  | emitOne | @ | events.js:96
  | emit | @ | events.js:191
  | readableAddChunk | @ | _stream_readable.js:178
  | Readable.push | @ | _stream_readable.js:136
  | onread | @ | net.js:560

[DonJayamanne]

Duplicate of #42