def get_raw(self, txhash):
        if self.tx_lookup.get(txhash):
            return self.tx_lookup[txhash]
        url = self.url_stem % "%s/tx"
        data = {'txhash': txhash}
        req = urllib2.Request(url, json.dumps(data),
                              {'Content-Type': 'application/json'})
        f = urllib2.urlopen(req)
        payload = f.read()
        self.tx_lookup[txhash] = payload
        f.close()
        return payload
dataset/ETHPy150Open chromaway/ngcccbase/ngcccbase/services/chroma.py/ChromaBlockchainState.get_raw/swapped operands of `%`