Parse bulk cymru data

def parse(self, data):
        """Parse bulk cymru data"""

        ASNlist = []
        for line in data.splitlines()[1:]:
            line = plain_str(line)
            if "|" not in line:
                continue
            asn, ip, desc = [elt.strip() for elt in line.split('|')]
            if asn == "NA":
                continue
            asn = "AS%s" % asn
            ASNlist.append((ip, asn, desc))
        return ASNlist