def precision(key):
    _check_obsolete(key)
    return physical_constants[key][2] / physical_constants[key][0]
Queries are constrained to a single database
dataset/ETHPy150Open scipy/scipy/scipy/constants/codata.py/precision--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/django-1.4/tests/regressiontests/multiple_database/tests.py/QueryTestCase.test_basic_queries