@extensionmethod(Observable)
def pluck(self, key):

    return self.map(lambda x: x[key])
Prints string with field name if present on exception.
dataset/ETHPy150Open ReactiveX/RxPY/rx/linq/observable/pluck.py/pluck--crossover with--dataset/ETHPy150Open AppScale/appscale/AppServer/lib/protorpc/protorpc/messages.py/ValidationError.__str__