code: def set_config_from_envs(config):
      '''Takes a ConfigParser, and checks every section/token for an
      environment variable of the form SECTION_TOKEN, with any dots
      replaced by underscores. If the variable exists, sets the config
      variable to the env value.
      '''
      for section in config.sections():
          for token in config.options(section):
              set_config_token_from_env(section, token, configf set_config_from_envs(config):
      '''Takes a ConfigParser, and checks every section/token for an
      environment variable of the form SECTION_TOKEN, with any dots
      replaced by underscores. If the variable exists, sets the config
      variable to the env value.
      '''
      for section in config.sections():
          for token in config.options(section):
              set_config_token_from_env(section, token, config)
docs: Takes a ConfigParser, and checks every section/token for an
      environment variable of the form SECTION_TOKEN, with any dots
      replaced by underscores. If the variable exists, sets the config
      variable to the env value.