Java Python属性错误'；地图'；对象没有属性'；单元格'；

我试图将java代码翻译成Python，但遇到了一个attributenotfound错误

以下是有效的java代码：

java

public class Map {
  private Cell[][] cells;

  public Map() {
    this.cells = new Cell[7][7];
    for (int i = 0; i < 7; i++) {
      for (int j = 0; j < 7; j++) {
        this.cells[i][j] = new Cell();
      }
    }
  }
}

下面是我的Python代码，其中有错误：

Map.py

from Cell import Cell

class Map():
     def __init__(self):
          for i in range(7):
               for j in range(7):
                    self.cells[i][j] = Cell()

Cell.py

class Cell():
     def __init__(self):
          self.occupiedObject = None

---

我想你想要这样的东西：

class Cell:
    def __init__(self):
        self.occupied_object = None

class Map:
    def __init__(self):
        self.cells = [[Cell() for x in range(7)] for y in range(7)]

class Cell:
    def __init__(self):
        self.occupied_object = None

class Map:
    def __init__(self):
        self.cells = [[Cell() for x in range(7)] for y in range(7)]