def txn(fit):
result = Result.get_by_key_name('best')
if result is None:
result = Result(key_name='best', fitness=fit)
elif result.fitness > fit:
result.fitness = fit
result.put()
def txn(fit):
result = Result.get_by_key_name('best')
if result is None:
result = Result(key_name='best', fitness=fit)
elif result.fitness > fit:
result.fitness = fit
result.put()
