music with stepper motors
 
 
 

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# -*- coding: utf-8 -*-
"""Abstract base classes.
These are necessary to avoid circular imports between core.py and fields.py.
"""
import copy
class FieldABC(object):
"""Abstract base class from which all Field classes inherit.
"""
parent = None
name = None
def serialize(self, attr, obj, accessor=None):
raise NotImplementedError
def deserialize(self, value):
raise NotImplementedError
def _serialize(self, value, attr, obj):
raise NotImplementedError
def _deserialize(self, value, attr, ob):
raise NotImplementedError
def __deepcopy__(self, memo):
ret = copy.copy(self)
return ret
class SchemaABC(object):
"""Abstract base class from which all Schemas inherit."""
def dump(self, obj):
raise NotImplementedError
def dumps(self, obj, *args, **kwargs):
raise NotImplementedError
def load(self, data):
raise NotImplementedError
def loads(self, data):
raise NotImplementedError