old_contents: import os
  from textwrap import dedent
  import logging
  import requests
  from tambo import Transport
  import chacractl
  from chacractl.decorators import catches, requests_errors
  
  
  logger = logging.getLogger(__name__)
  
  
  class Exists(object):
      _help = dedent("""
      Check if a given URL part exists already. Mainly does a HEAD request to the
      given endpoint. If the URL does not exist it will return a non-zero exit
      status (404).
  
      For example:
  
          chacractl exists binaries/ceph-deploy/master/debian/wheezy
  
      Positional Arguments:
  
      [URL]        The endpoint, starting with the full url part (sans fqdn)
      """)
      help_menu = "recreate, delete, or update repositories"
      options = ['recreate', 'update']
  
      def __init__(self, argv):
          self.argv = argv
          self.base_url = chacractl.config['url']
  
      def sanitize_url(self, url_part):
          # get rid of the leading slash to prevent issues when joining
          url = url_part.lstrip('/')
  
          # and add a trailing slash so that the request is done at the correct
          # canonical url
          if not url.endswith('/'):
              url = "%s/" % url
          return url
  
      @catches(requests.exceptions.HTTPError, handler=requests_errors)
      def head(self, url):
          logger.info('HEAD: %s', url)
          exists = requests.head(
              url,
              auth=chacractl.config['credentials'])
          exists.raise_for_status()
  
      def main(self):
          self.parser = Transport(self.argv, options=self.options)
          self.parser.catch_help = self._help
          self.parser.parse_args()
          if self.parser.unknown_commands:
              url_part = self.sanitize_url(self.parser.unknown_commands[-1])
              url = os.path.join(self.base_url, url_part)
              return self.head(url)
          else:
              logger.error('no url was passed in')
  
new_contents: import os
  from textwrap import dedent
  import logging
  import requests
  from tambo import Transport
  import chacractl
  from chacractl.decorators import catches, requests_errors
  
  
  logger = logging.getLogger(__name__)
  
  
  class Exists(object):
      _help = dedent("""
      Check if a given URL part exists already. Mainly does a HEAD request to the
      given endpoint. If the URL does not exist it will return a non-zero exit
      status (404).
  
      For example:
  
          chacractl exists binaries/ceph-deploy/master/debian/wheezy
  
      Positional Arguments:
  
      [URL]        The endpoint, starting with the full url part (sans fqdn)
      """)
      help_menu = "check if a given URL part exists already"
      options = []
  
      def __init__(self, argv):
          self.argv = argv
          self.base_url = chacractl.config['url']
  
      def sanitize_url(self, url_part):
          # get rid of the leading slash to prevent issues when joining
          url = url_part.lstrip('/')
  
          # and add a trailing slash so that the request is done at the correct
          # canonical url
          if not url.endswith('/'):
              url = "%s/" % url
          return url
  
      @catches(requests.exceptions.HTTPError, handler=requests_errors)
      def head(self, url):
          logger.info('HEAD: %s', url)
          exists = requests.head(
              url,
              auth=chacractl.config['credentials'])
          exists.raise_for_status()
  
      def main(self):
          self.parser = Transport(self.argv, options=self.options)
          self.parser.catch_help = self._help
          self.parser.parse_args()
          if self.parser.unknown_commands:
              url_part = self.sanitize_url(self.parser.unknown_commands[-1])
              url = os.path.join(self.base_url, url_part)
              return self.head(url)
          else:
              logger.error('no url was passed in')
  
subject: correct options and help text