test if labels exist before loop. don't raise if a label cannot be converted
test if labels exist before loop. don't raise if a label cannot be converted

pknight007/electrum-vtc,asfin/electrum,protonn/Electrum-Cash,neocogent/electrum,wakiyamap/electrum-mona,asfin/electrum,pooler/electrum-ltc,protonn/Electrum-Cash,dabura667/electrum,wakiyamap/electrum-mona,vertcoin/electrum-vtc,dabura667/electrum,fireduck64/electrum,FairCoinTeam/electrum-fair,lbryio/lbryum,dashpay/electrum-dash,digitalbitbox/electrum,FairCoinTeam/electrum-fair,kyuupichan/electrum,cryptapus/electrum-uno,spesmilo/electrum,argentumproject/electrum-arg,cryptapus/electrum-uno,digitalbitbox/electrum,fyookball/electrum,lbryio/lbryum,pooler/electrum-ltc,romanz/electrum,spesmilo/electrum,argentumproject/electrum-arg,aasiutin/electrum,fyookball/electrum,aasiutin/electrum,FairCoinTeam/electrum-fair,imrehg/electrum,romanz/electrum,vialectrum/vialectrum,neocogent/electrum,wakiyamap/electrum-mona,procrasti/electrum,wakiyamap/electrum-mona,fujicoin/electrum-fjc,cryptapus/electrum,fujicoin/electrum-fjc,cryptapus/electrum-myr,dabura667/electrum,imrehg/electrum,cryptapus/electrum-myr,aasiutin/electrum,vertcoin/electrum-vtc,digitalbitbox/electrum,molecular/electrum,pooler/electrum-ltc,cryptapus/electrum,protonn/Electrum-Cash,cryptapus/electrum-myr,vertcoin/electrum-vtc,pooler/electrum-ltc,fireduck64/electrum,molecular/electrum,pknight007/electrum-vtc,cryptapus/electrum-uno,kyuupichan/electrum,vialectrum/vialectrum,asfin/electrum,argentumproject/electrum-arg,aasiutin/electrum,pknight007/electrum-vtc,dashpay/electrum-dash,fyookball/electrum,neocogent/electrum,spesmilo/electrum,procrasti/electrum,dashpay/electrum-dash,vialectrum/vialectrum,cryptapus/electrum-uno,digitalbitbox/electrum,fireduck64/electrum,romanz/electrum,fujicoin/electrum-fjc,cryptapus/electrum,vertcoin/electrum-vtc,argentumproject/electrum-arg,procrasti/electrum,dashpay/electrum-dash,spesmilo/electrum,imrehg/electrum,pknight007/electrum-vtc,procrasti/electrum,kyuupichan/electrum,molecular/electrum,FairCoinTeam/electrum-fair,cryptapus/electrum-myr,fireduck64/electrum,protonn/Electrum-Cash,molecular/electrum,imrehg/electrum,dabura667/electrum