<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def disable_tracing_url(url, blacklist_paths=None):
 """Disable tracing on the provided blacklist paths, by default not tracing the health check request. If the url path starts with the blacklisted path, return True. :type blacklist_paths: list :param blacklist_paths: Paths that not tracing. :rtype: bool :returns: True if not tracing, False if tracing. """

    if blacklist_paths is None:
        blacklist_paths = DEFAULT_BLACKLIST_PATHS

    # Remove the 'https?|ftp://' if exists
    url = re.sub(URL_PATTERN, '', url)

    # Split the url by the first '/' and get the path part
    url_path = url.split('/', 1)[1]

    for path in blacklist_paths:
        if url_path.startswith(path):
            return True

    return False