def METHOD_NAME(self):
    """Get all the python files."""
    self.files = []
    for rootPath, dirNames, fileNames in os.walk(WEBOTS_HOME):
        for fileName in fnmatch.filter(fileNames, '*.py'):
            shouldContinue = False
            for skippedDirectory in skippedDirectoriesFull:
                if rootPath.startswith(skippedDirectory):
                    shouldContinue = True
                    break
            if shouldContinue:
                continue
            filePath = os.path.join(rootPath, fileName)
            if sys.version_info[0] < 3:
                with open(filePath) as file:
                    if file.readline().startswith('#!/usr/bin/env python3'):
                        continue
            self.files.append(filePath)