def circle_distance_circle(circle, other):
    d = abs(circle.center - other.center) - circle.r - other.r
    if d < 0.0:
        d = 0.0
    return d
If a trigger added to the C{'before'} phase of an event returns a
dataset/ETHPy150Open los-cocos/cocos/cocos/collision_model.py/circle_distance_circle--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/test/test_internet.py/SystemEventTestCase.test_beforeReturnsDeferred