Function _replace

Lib/collections/__init__.py:463–467

(self, /, **kwds)

                              'or iterable')

    def _replace(self, /, **kwds):
        result = self._make(_map(kwds.pop, field_names, self))
        if kwds:
            raise TypeError(f'Got unexpected field names: {list(kwds)!r}')
        return result

    _replace.__doc__ = (f'Return a new {typename} object replacing specified '
                        'fields with new values')