def get_keys(tuple_of_tuples):
    return tuple([t[0] for t in tuple_of_tuples])
Calculates a security hash for the given Form instance.
dataset/ETHPy150Open CiscoSystems/avos/horizon/utils/functions.py/get_keys--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.2/django/contrib/formtools/utils.py/security_hash