<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def make_congress_dir(congress, dest):
 """ If the directory for a given congress does not exist. Make it. """


    congress_dir = "{0}/{1}".format(dest, congress)
    path = os.path.dirname(congress_dir)
    logger.debug("CSV DIR: {}".format(path))
    if not os.path.exists(congress_dir):
        logger.info("Created: {0}".format(congress_dir))
        os.mkdir(congress_dir)
    return congress_dir