simple ring buffer

ring_buffer.py

from collections import deque as dq

class RingBuffer(dq):
    """
    Simple ring buffer.
    
    Args:
        size (int): number of items

    """
    def __init__(self, size):
        dq.__init__(self)
        self.size = size
        self.full = False
        
    def append(self,item):
        dq.append(self,item)
        if len(self) == self.size:
            self.append = self.full_append
            self.full = True
            
    def full_append(self,item):
        dq.append(self,item)
        self.popleft()
        
    def get(self):
        return list(self)