我观看了一些视频，内容是如何使用带有kivy和python的Firebase数据库通过我的应用程序实现它。但是，我不断得到
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)错误。请让我知道是否需要更多代码或信息。
这是我的代码：
class MetropolisApp(App):
database_url = ''
user_num = 1
def build(self):
return ControlScreens()
def on_start(self):
# Get database data
db = requests.get('' + str(self.user_num) + '.json')
print(db.ok)
data = json.loads(db.content.decode())
print(data)
def patch(self, firstname, lastname, phonenumber, username, password):
user_fname = json.loads(firstname)
user_lname = json.loads(lastname)
user_phone = json.loads(phonenumber)
user_user = json.loads(username)
user_pw = json.loads(password)
requests.patch(url=self.database_url, json=user_fname)
requests.patch(url=self.database_url, json=user_lname)
requests.patch(url=self.database_url, json=user_phone)
requests.patch(url=self.database_url, json=user_user)
requests.patch(url=self.database_url, json=user_pw)
答案 0 :(得分：0)
您的问题是import { Component, OnInit, ViewChild, ComponentFactoryResolver, NgModule, Compiler, ViewContainerRef } from '@angular/core';
import { ContentDirective } from './../../directives/content.directive';
import { HttpClient } from '@angular/common/http';
import { ComponentsModule } from '@components/components.module';
@Component({
selector: 'app-chapter',
templateUrl: './chapter.component.html',
styleUrls: ['./chapter.component.scss']
})
export class ChapterComponent implements OnInit {
@ViewChild('container', { read: ViewContainerRef }) container: ViewContainerRef;
constructor(private resolver: ComponentFactoryResolver, private http: HttpClient,
private compiler: Compiler) { }
ngOnInit() {
this.loadComponent();
}
private addComponent(template: string, properties: any = {}) {
@Component({ template })
class TemplateComponent { }
@NgModule({ declarations: [TemplateComponent], imports: [ComponentsModule] })
class TemplateModule { }
const mod = this.compiler.compileModuleAndAllComponentsSync(TemplateModule);
const factory = mod.componentFactories.find((comp) =>
comp.componentType === TemplateComponent
);
const component = this.container.createComponent(factory);
Object.assign(component.instance, properties);
}
loadComponent() {
// let componentFactory = this.componentFactoryResolver.resolveComponentFactory(adItem.component);
const html = this.http.get('/assets/content/chapter1.html', { responseType: 'text' });
html.subscribe(
(res) => {
this.addComponent(res);
},
(err) => console.log(err),
() => console.log('Complete')
);
}
}
是要将json.loads这样的字符串转换成'{"some_key": "some_value"}'这样的python字典。您正尝试在{"some_key": "some_value"}之类的字符串上使用json.loads，这会产生错误。
您想做的（我认为）是这样的：
'Test' def patch(self, firstname, lastname, phonenumber, username, password):
fname_data = {"fname": firstname} # Make a python dictionary
requests.patch(url=self.database_url, json=fname_data) # Send the python dictionary
的{{1}}关键字参数需要一个python字典。