KIVY値のエラー

Question

Kivyを使ってAppsを作成することで、天気のアプリを作成しようとしました。現在解決方法がわからないというエラーが出ています。私は、次のerrorを得る

：

from kivy.app import App 

from kivy.network.urlrequest import UrlRequest 
import json 

from kivy.uix.boxlayout import BoxLayout 
from kivy.properties import ObjectProperty, ListProperty 
from kivy.uix.listview import ListItemButton 
from kivy.factory import Factory 

class LocationButton(ListItemButton): 
    location = ListProperty()  

class AddLocationForm(BoxLayout): 
    search_results = ObjectProperty() 
    search_input = ObjectProperty() 

    def args_converter(self, index, data_item):  
     city, country = data_item  
     return {'location':(city, country)} 

    def search_location(self): 
     search_template = "http://api.openweathermap.org/data/2.5/find?q={}&type=like&APPID=" + "a3ce4c4c978cae4ace6c3e404899ac32" 

     search_url = search_template.format(self.search_input.text) 
     request = UrlRequest(search_url, self.found_location) 

     #TODO : Error Checking if location is not found 

    def found_location(self, request, data): 
     data = json.loads(data.decode()) if not isinstance(data, dict) else data  

     cities = ["{}({})".format(d['name'], d['sys'] 
            ['country']) for d in data['list']] 

     self.search_results.item_strings = cities 
     del self.search_results.adapter.data[:] 
     self.search_results.adapter.data.extend(cities) 
     self.search_results._trigger_reset_populate() 

     #TODO: Error checking if network failure 

class WeatherRoot(BoxLayout): 
    current_weather = ObjectProperty() 

    def show_current_weather(self, location): 

     self.clear_widgets() 

     if location is None and self.current_weather is None: 
      location = ("New York (US)", "US") 

     if location is not None: 
      self.current_weather = Factory.CurrentWeather() 
      self.current_weather.location = location 

     self.add_widget(self.current_weather) 

    def show_add_location_form(self): 
     self.clear_widgets() 
     self.add_widget(AddLocationForm()) 

class WeatherApp(App): 
    pass  

if __name__ == '__main__': 
    WeatherApp().run() 

Kivyファイル：

#: import main weather 
#: import ListAdapter kivy.adapters.listadapter.ListAdapter 

WeatherRoot: 

<WeatherRoot>:  
    AddLocationForm: 

<AddLocationForm>: 
    orientation: 'vertical' 
    search_input: search_box 
    search_results: search_results_list 

    BoxLayout: 
     height: '40dp' 
     size_hint_y: None 

     TextInput: 
      id: search_box 
      size_hint_x: 50 
      focus: True 
      multiline: False 
      on_text_validate: root.search_location() 

     Button: 
      text: 'Search' 
      size_hint_x: 25 

      on_press: root.search_location() 
     Button: 
      text: 'Current Location' 
      size_hint_x: 25 

    ListView: 
     id: search_results_list 
     adapter: 
      ListAdapter (data = [], cls= main.LocationButton, 
      args_converter = root.args_converter) 
    Button: 
     text: 'Cancel' 
     size_hint_y: None 
     height: '40dp' 
     on_press: app.root.show_current_weather(None) 

<LocationButton>: 
    text: "{} ({})".format(self.location[0], self.location[1]) 
    height: "40dp" 
    size_hint_y: None 
    on_press: app.root.show_current_weather(self.location) 

<CurrentWeather@BoxLayout>: 
    location: ['New York', 'US'] 
    conditions: None 
    temp: None 
    temp_min: None 
    temp_max: None 
    orientation: "vertical" 
    Label: 
     text: "{} ({})".format(root.location [0], root.location[1]) 
    BoxLayout: 
     orientation: 'horizontal' 
     size_hint_y: None 
     height: '40dp' 
     Button: 
      text: 'Add Location' 
      on_press: app.root.show_add_location_form() 
     Button: 
      text: "Forecast" 

Answer 1

私がいた

city, country = data_item ValueError: too many values to unpack

すべてのヘルプは

Pythonのコードこのエラーを解決するために感謝しました自分自身を理解することができます。私はargs_converterに文字列を渡していました。私はタプルを渡す必要がありました。このコードは上記のコードを修正します。

cities = [(d['name'], d['sys']['country']) for d in data['list']]