Method __setattr__

django/conf/__init__.py:141–167

Set the value of setting. Clear all cached values if _wrapped changes (@override_settings does this) or clear single values when set.

(self, name, value)

        return val

    def __setattr__(self, name, value):
        """
        Set the value of setting. Clear all cached values if _wrapped changes
        (@override_settings does this) or clear single values when set.
        """
        if name == "_wrapped":
            self.__dict__.clear()
        else:
            self.__dict__.pop(name, None)

        # RemovedInDjango70Warning.
        if name == "USE_BLANK_CHOICE_DASH":
            _show_settings_deprecation_warning(
                USE_BLANK_CHOICE_DASH_DEPRECATED_MSG, RemovedInDjango70Warning
            )
        # RemovedInDjango70Warning.
        if name == "MAILERS":
            # When MAILERS is set, clear any cached values of
            # deprecated settings so that __getattr__() runs again for them.
            for setting in DEPRECATED_EMAIL_SETTINGS:
                self.__dict__.pop(setting, None)
        if name in DEPRECATED_EMAIL_SETTINGS:
            _show_settings_deprecation_warning(
                EMAIL_SETTING_DEPRECATED_MSG.format(name=name), RemovedInDjango70Warning
            )

        super().__setattr__(name, value)

    def __delattr__(self, name):
        """Delete a setting and clear it from cache if needed."""