human
Solve the following python programming problem given the following code:
def relativize_classpath(classpath, root_dir, followlinks = True) : 
    'Convert into classpath relative to a directory.

  This is eventually used by a jar file located in this directory as its manifest
  attribute Class-Path. See
  https://docs.oracle.com/javase/7/docs/technotes/guides/extensions/spec.html#bundled

  :param list classpath: Classpath to be relativized.
  :param string root_dir: directory to relativize urls in the classpath, does not
    have to exist yet.
  :param bool followlinks: whether to follow symlinks to calculate relative path.

  :returns: Converted classpath of the same size as input classpath.
  :rtype: list of strings
  ' 
    def relativize_url(url, root_dir) : 
        url = (os.path.realpath (url) if followlinks else url) 
        root_dir = (os.path.realpath (root_dir) if followlinks else root_dir) 
        url_in_bundle = os.path.relpath (url, root_dir) 
        if os.path.isdir (url) : 
            url_in_bundle += '/' 
return url_in_bundle 
return [relativize_url (url, url) for url in classpath] 

    
    

    Fix the buggy line: return [relativize_url (url, url) for url in classpath]
assistant
#Here is Python program to fix the buggy line: return [relativize_url (url, url) for url in classpath]
.

return [relativize_url (url, root_dir) for url in classpath]