kivy - name 错误名称 未定义线程

Question

我有这个代码

from threading import Thread
...
Builder.load_string('''
<Urlpup>:
    size_hint: .7, .7
    auto_dismiss: False
    title: 'Enter URL'
    BoxLayout:
        orientation: 'vertical'
        CustomTextInput:
            id: url_input
            multiline: False
        Button:
            text: 'OK'    
            on_press: root.dismiss()
            on_release: Thread(target=app.create_new_article(url_input.text)).start()
''')

运行时出现 Name Error name Thread is not defined

Answer 1

需要在kv上下文中导入Thread，见the documentation。