renderer.py 文件源码

def render(self, region, context, timeout=None):
        """render(self, region, context, *, timeout=None)
        Render a single region using the context passed

        If ``timeout`` is ``None`` caching is disabled.

        .. note::
           You should treat anything except for the ``region`` and ``context``
           argument as keyword-only.
        """
        if timeout is not None:
            key = self.cache_key(region)
            html = cache.get(key)
            if html is not None:
                return html

        html = mark_safe(''.join(
            self._renderer.render_plugin_in_context(plugin, context)
            for plugin in self._contents[region]
        ))

        if timeout is not None:
            cache.set(key, html, timeout=timeout)
        return html