Data Entry class | Python Fiddle

class DataEntry(object):
    count = 0
    def __init__(self, key=None, data=None):
        self.count += 1
        if key is None:
            self.key = str(self.count)
        else:
            self.key = key
       	if data is None:
            self.data = {}
        else:
            self.data = data.copy()
    def add_field(self, key, data):
        self.data[key] = data
    def get_field(self, key):
        return self.data[key]
    def __str__(self):
        rtn = ''
        rtn += 'Key: {}'.format(self.key)
        rtn += '\n{}'.format(self.data)
        return rtn
    def __repr__(self):
        return str(self)

class DataStore(object):
    storeName = '.testdb.db'
    def __init__(self, name=None):
        if name is not None:
            self.storeName = name
    def get_entry(self,key):
        import shelve
        db = shelve.open(self.storeName)
        rtn = db[key]
        db.close()
        return rtn
    def store_entry(self,key,entry):
		import shelve
        db = shelve.open(self.storeName)
    
d = DataEntry()
d.add_field('fieldOne','SomeData')
print d.get_field('fieldOne')
print d

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