import ndaparser

if __name__ == "__main__" : 
    trns = ndaparser.parseLine("T10188000060SCTSZFW3GT3WU1B   1501131501131501121710Viitemaksu                         +000000000000002800  HAKKERI HEIKKI HOKSAAVA            A               00000000000000111012         ")
    print(trns)

import ndaparser

if __name__ == "__main__" : 
    transactions = [];
    with open("./testdata.nda") as f:
        for line in f:
            transaction = ndaparser.parseLine(line)
            if transaction is not None:
                transactions.append(transaction)
    for transaction in transactions:
        print(transaction)

Read testdata from file, print valid transactions
Read testdata from file, print valid transactions
