python - 'str' 对象没有属性 'META'

Question

我收到错误:

'str' object has no attribute 'META'

Traceback 突出显示了这段代码:

return render('login.html', c)

那段代码在我的 views.py 中的位置:

from django.shortcuts import render
from django.http import HttpResponseRedirect    # allows us to redirect the browser to a difference URL
from django.contrib import auth                 # checks username and password handles login and log outs
from django.core.context_processors import csrf # csrf - cross site request forgery. 

def login(request):
    c = {}
    c.update(csrf(request))
    return render('login.html', c)

这是我的模板的样子:

{% extends "base.html"%}

{% block content %}

    {% if form.errors %}
        <p class = 'error'>Sorry, that's not a valid username or password</p>
    {% endif %}

    <form action = '/accounts/auth/' method = 'post'> {% csrf_token %}
        <label for = 'username'>User name: </label>
        <input type = 'text' name = 'username' value = '' id = 'username'>
        <label for = 'password'>Password: </label>
        <input type = 'password' name = 'password' value = '' id = 'password'>

        <input type = 'submit' value = 'login'>
    </form>
{% endblock %}  

我假设我可能错误地使用了 render() 但在文档中我认为我输入了正确的参数。

https://docs.djangoproject.com/en/dev/topics/http/shortcuts/

Answer 1

render() 的第一个参数是request 对象，因此将您的行更新为

return render(request, 'login.html', c)

它试图引用 request.META，但您传递的是 'login.html' 字符串，因此出现错误。