@property
  def _prop_name(self):
    return self.__property
Checks that field_data is a string of e-mail addresses separated by commas.
dataset/ETHPy150Open CollabQ/CollabQ/.google_appengine/google/appengine/ext/db/__init__.py/_ReverseReferenceProperty._prop_name--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-0.96/django/core/validators.py/isCommaSeparatedEmailList