Of course, seasoned Python programmers are wise and systematic, and generally do not use this freedom to create and delete attributes arbitrarily.
当然，经验丰富的 Python 程序员是非常明智和有条理的，一般不会使用这种自由来任意创建和删除属性。
Those attributes are not static, so you can add and delete them at will.
这些属性不是静态的，因此可以随意添加和删除它们。
Applications can add new objects to the graph, delete objects from the graph, and modify attributes of objects.
应用程序可以将新的对象添加到图形中，从图形中删除对象并修改对象的属性。
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