def ForSource(self, source):
    if not isinstance(source, Source):
      raise ValueError("Source must be a source object", type(source))
    return type(self)(self._metric, source)
Grab HTML from a link, parse links and add a row per link to spreadsheet.
dataset/ETHPy150Open steveniemitz/scales/scales/varz.py/VarzMetric.ForSource--crossover with--dataset/ETHPy150Open miklevin/pipulate/common.py/precrawl