code: def load_configuration_file(self):
          
          if not os.path.exists(self.config_file):
              return
          try:
              with open(self.config_file, 'r') as file:
                  csvreader = csv.reader(file, delimiter='=',
                                         escapechar='\\', quoting=csv.QUOTE_NONE)
                  for line in csvreader:
                      if len(line) == 2:
                          key, value = line
                          self.config_dict[key] = value
                      else:
                          self.config_dict = dict()
                          self.logger.warning("Malformed configuration file {0}, ignoring it.".
                                              format(self.config_file))
                          return
          except (OSError, IOError) as e:
              self.logger.warning("Could not load configuration file: {0}".\
                  format(utils.exc_as_decoded_string(e)))
docs: Load all configuration from file