Don't skip lines with floats in scientific notation

          self.data.append(list(map(float,words)))

      else:

        lines = chunk.split("\n")

        alpha = re.compile('[a-zA-Z]')

        alpha = re.compile('[a-df-zA-DF-Z]') # except e or E for floating-point numbers

        for line in lines:

          if alpha.search(line): continue

          words = line.split()