adapter.py

from dataclasses import dataclass


# 3rd party functionality
@dataclass
class DisplayDataType:
    index: float
    data: str


class DisplayData:
    def __init__(self, display_data: DisplayDataType):
        self.display_data = display_data

    def show_data(self):
        print(f"3rd party functionality: {self.display_data.index} - {self.display_data.data}")


# our code
@dataclass
class DatabaseDataType:
    position: int
    amount: int


class StoreDatabaseData:
    def __init__(self, database_data: DatabaseDataType):
        self.database_data = database_data

    def store_data(self, data):
        print(f"Database data stored: {self.database_data.position} - {self.database_data.amount}")


class DisplayDataAdapter(StoreDatabaseData, DisplayData):
    def __init__(self, data):
        self.data = data

    def store_data(self):
        print("Call out code but use 3rd party code")
        for item in self.data:
            ddt = DisplayDataType(float(item.position), str(item.amount))
            self.display_data = ddt
            self.show_data()


def generate_data():
    data = list()
    data.append(DatabaseDataType(2, 2))
    data.append(DatabaseDataType(3, 7))
    data.append(DatabaseDataType(9, 1))
    return data


if __name__ == '__main__':
    adapter = DisplayDataAdapter(generate_data())
    adapter.store_data()