code: def write(self, fp):
          
          if self._defaults:
              fp.write("[%s]\n" % DEFAULTSECT)
              for (key, value) in self._defaults.items():
                  fp.write("%s = %s\n" % (key, str(value).replace('\n', '\n\t')))
              fp.write("\n")
          for section in self._sections:
              fp.write("[%s]\n" % section)
              for (key, value) in self._sections[section].items():
                  if key == "__name__":
                      continue
                  if (value is not None) or (self._optcre == self.OPTCRE):
                      key = " = ".join((key, str(value).replace('\n', '\n\t')))
                  fp.write("%s\n" % (key))
              fp.write("\n")
docs: Write an .ini-format representation of the configuration state.