old_contents: from lib.test_config import AUTH_CREDS as AUTH_CREDS_orig
  
  allargs = [(None, 'MD5',), ('MD5-sess',), ('SHA-256',) ('SHA-256-sess',), \
    ('SHA-256', 'SHA-256-sess', 'MD5-sess', None)]
  
  class AUTH_CREDS(AUTH_CREDS_orig):
      def __init__(self):
          self.enalgs = allargs.pop()
          allargs.insert(0, self.enalgs)
          AUTH_CREDS_orig.__init__(self, 'mightyuser', 's3cr3tpAssw0Rd')
  
new_contents: from lib.test_config import AUTH_CREDS as AUTH_CREDS_orig
  
  allargs = [(None, 'MD5',), ('MD5-sess',), ('SHA-256',), ('SHA-256-sess',), \
    ('SHA-256', 'SHA-256-sess', 'MD5-sess', None)]
  
  class AUTH_CREDS(AUTH_CREDS_orig):
      def __init__(self):
          self.enalgs = allargs.pop()
          allargs.insert(0, self.enalgs)
          AUTH_CREDS_orig.__init__(self, 'mightyuser', 's3cr3tpAssw0Rd')
  
subject: Add missing comma.