code: def set(self, section, option, value):
          
          if not value:
              value = '!!False!!'
          if self.is_secure_option(section, option):
              self.set_secure(section, option, value)
          else:
              ConfigParser.set(self, section, option, value)
docs: Set an option value. Knows how to set options properly marked
          as secure.