from copy import deepcopy

class Base:
  symbol: str
  
  def __init__(self, symbol, store):
    self.symbol = symbol
    self.store = store
    self.dirty = True
  
  def dict(self):
    r = deepcopy(self.__dict__)
    del r['store']
    del r['dirty']
    return r
    
  def path(self):
    raise NotImplementedError('path')
    
  def ext(self):
    raise NotImplementedError('extension')
  
  def type(self):
    return self.__class__.__name__
  
  def __str__(self):
    return f'{self.symbol}.{self.ext()}'