@staticmethod
- def get_channels(xml, filter={}):
+ def get_channels(xml, filter=None):
+ if filter is None: filter={}
xpath = '//channel%s | //default:channel%s' % (XpathFilter.xpath(filter), XpathFilter.xpath(filter))
channel_elems = xml.xpath(xpath)
return NITOSv1Channel.get_channel_objs(channel_elems)