       default: []
       items:
         type: 'string'
+    pep8ErrorsToWarnings:
+      description: 'Convert PEP8 "E" messages to linter warnings'
+      type: 'boolean'
+      default: false
 
   activate: ->
     require('atom-package-deps').install()

        parameters.push('-')

        execPath = atom.config.get('linter-flake8.executablePath')
        cwd = path.dirname(textEditor.getPath())
        return helpers.exec(execPath, parameters, {stdin: fileText, cwd: cwd}).then (result) ->
          toReturn = []

            line = parseInt(match[1]) or 0
            col = parseInt(match[2]) or 0
            toReturn.push({
              type: if match[4] is 'E' and not pep8warn then 'Error' else 'Warning'
              text: match[3] + ' — ' + match[5]
              filePath
              range: extractRange({
