无法从 QAbstractItemModel 继承 [英] Unable to inherit from QAbstractItemModel

问题描述

我是 PyQt 中的模型/视图的新手，在创建从 QAbstractItemModel 类继承的对象时遇到了问题.这是从它继承的类:

I'm new to model/view in PyQt and I'm having trouble creating an object that inherits from the QAbstractItemModel class. Here's the class that inherits from it:

class MyCustomDataModel(QAbstractItemModel):

    def __init(self, parent = None):
        super(MyCustomDataModel, self).__init__(parent)

        self.parent = parent

这是另一个尝试实例化上述类型对象的类:

Here's another class that tries to instantiate an object of the above type:

class MyCustomType(AnotherCustomTypeThatInheritsQListWidgetItem):

    def __init__(self, parent = None):
        super(MyCustomType, self).__init__(parent)

        # Instantiate a model:
        self.dataModel = MyCustomDataModel(self)

上面的实例化在运行时抛出以下错误:QAbstractItemModel(QObject parent = None): 参数 1 有意外的类型‘MyCustomType’"我看不出这里有什么问题，但我对 Python/PyQt 还是很陌生.有人可以指出我做错了什么吗?我试过调用实例化行，但没有传入任何内容，但出现相同的错误.

The above instantiation is throwing the following error at runtime: "QAbstractItemModel(QObject parent = None): argument 1 has unexpected type 'MyCustomType'" I cannot see what the problem is here, but I'm pretty new to Python / PyQt. Can someone please point out what I've done wrong? I've tried calling the instantiation line and not passing anything in but I get the same error.

推荐答案

这可能更适合作为评论而不是答案.

This might be more appropriate as a comment instead of an answer.

尝试更新将 MyCustomType 实例传递给 MyCustomDataModel 的行:

Try updating the line where you pass the MyCustomType instance to MyCustomDataModel:

self.dataModel = MyCustomDataModel(self)

改为使用:

self.dataModel = MyCustomDataModel()

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