Visual studio code suppress pep8 warnings

How can I suppress pep8 warnings, in Visual studio code? What I want to do is to suppress E501 warning I don't want to get warnings where my code length is more than 80 chars. I'm using Don Jayamanne's Python extension and here is my config file for vscode

{
    "python.linting.pylintEnabled": false,
    "python.linting.pep8Enabled": true,
    "python.pythonPath": "/workspace/virtualenvs/abr/bin/python3",
    "python.linting.enabled": true
}

I know that there is one another option "python.linting.pep8Args": [] but I couldn't to get it work. I've installed pep8 on virtualenv

What I've already tried.

1. "python.linting.pep8Args": ['--ignore=E501']
2. "Searched all visual studio code settings"