code: def print_variables(self):
          
          print_out = partial(self.print_out, format_options='green')
  
          print_out('===== variables =====')
  
          for var, hint in self.vars.get_descriptions().items():
              print_out('    %' + var + ' = ' + var + ' = ' + hint.replace('%', '%%'))
  
          print_out('=====================')
  
          return self
docs: Prints out magic variables available in config files
          alongside with their values and descriptions.
          May be useful for debugging.
  
          http://uwsgi-docs.readthedocs.io/en/latest/Configuration.html#magic-variables