feed.py 文件源码

def item_enclosure_mime_type(self, item):
        mime = MimeTypes()
        try:
            if item.direction == 1:
                filename = join(self.folder, '{1}=={2}=={3}=={4}==longs.png'.format(\
                    item.broker.slug, item.symbol.symbol, item.period.period, item.system.title))
            elif item.direction == 2:
                filename = join(self.folder, '{1}=={2}=={3}=={4}==shorts.png'.format(\
                    item.broker.slug, item.symbol.symbol, item.period.period, item.system.title))

            mime_type = mime.guess_type(filename)[0]
            return mime_type
        except:
            return None