Python ring buffer test

ringbuffertest.py

class RingBuffer:
    full = False
    readpos = 0
    writepos = 0
    def __init__(self, size=8):
        self.size = size
        self.buf = [0] * size
    def take(self):
        if self.readpos == self.writepos:
            if self.full:
                self.full = False
            else:
                return -1
        past = self.readpos
        self.readpos += 1
        if self.readpos >= self.size:
            self.readpos = 0
        return self.buf[past]
    def put(self, value):
        if self.full: return False
        self.writepos += 1
        if self.writepos >= self.size:
            self.writepos = 0
        self.buf[self.writepos] = value
        if self.readpos == self.writepos:
            self.full = True
        return True
    
ring = RingBuffer()
    
for a in range(10):
    res = ring.put(a)
    if res:
        print(f"Successfully put {a} in ringbuffer")
    else:
        print(f"Unsuccessfully put {a} in ringbuffer")
        
for a in range(10):
    res = ring.take()
    if res != -1:
        print(f"Successfully read {res} from ringbuffer")
    else:
        print(f"Unsuccessfully read from ringbuffer")