我遇到了这个问题:KeyError:'city'。我从数据库中获取数据,并将其放入字典中。我的代码:Main.py
for row in rows:
city_dict = {'city': row[2]}
C = ClinicBanner(city=city_dict['city'])
result_banner.add_widget(C)
Clinicbanner.py
class ClinicBanner(GridLayout):
rows = 1
def __init__(self, city, **kwargs):
super(ClinicBanner, self).__init__(**kwargs)
centre = FloatLayout()
centre_button = Button(text=kwargs['city'], size_hint=(1, .8), pos_hint={"top": .2, "left": 1})
centre.add_widget(centre_button)
self.add_widget(centre)
我收到此错误:init中的第14行centre_button = Button(文本= kwargs ['city'],size_hint =(1,.8),pos_hint = {“顶部”:.2,“左侧”:1})KeyError:“ city”
我真的希望您能帮助我。谢谢您的回答!
您已经在init方法中定义了城市参数:
def __init__(self, city, **kwargs):
为什么不使用它:
centre_button = Button(text=city, size_hint=(1, .8), pos_hint={"top": .2, "left": 1})