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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def ensure_dir_path(self, path, relative=False):
 """ Ensure the path is a dir path. Should end with '/' except for schemes and locators. Args: path (str):
 Path or URL. relative (bool):
 Path is relative to current root. Returns: path: dir path """

        if not relative:
            rel_path = self.relpath(path)
        else:
            rel_path = path

        # Locator
        if self.is_locator(rel_path, relative=True):
            path = path.rstrip('/')

        # Directory
        elif rel_path:
            path = path.rstrip('/') + '/'
        # else: root
        return path