def to_str(self):
    out = "# %s\n" % self.VERSION
    if self.comment:
      for l in self.comment.splitlines():
        out += l % "# %s\n"
    for (key, value) in self.values:
      assert value is not None
      out += self.RECORD_MAGIC + key + "\n"
      out += value
      out += "\n"
    return out
dataset/ETHPy150Open bloomreach/zinc/zinc.py/Values.to_str/swapped operands of `%`