ValueError Django CSV
我所要做的就是通过Django在页面上显示我的CSV表。 一切似乎都正常，但由于某种原因，我出现了一个错误，我找不到解决办法ValueError Django CSV,django,python-3.x,csv,Django,Python 3.x,Csv,我所要做的就是通过Django在页面上显示我的CSV表。 一切似乎都正常，但由于某种原因，我出现了一个错误，我找不到解决办法 ValueError: The view csv_app.views.csv_simple_read didn't return an HttpResponse object. It returned None instead. [19/Feb/2020 21:40:07] "GET / HTTP/1.1" 500 57986 我是django的新手。我将非常感谢任何帮
ValueError: The view csv_app.views.csv_simple_read didn't return an HttpResponse object. It returned None instead.
[19/Feb/2020 21:40:07] "GET / HTTP/1.1" 500 57986
import csv
import os
def csv_simple_read(request):
path = os.path.dirname(__file__)
file = os.path.join(path, 'csv_simple_read.csv')
with open(file) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=';')
line_count = 0
for row in csv_reader:
print('\n\nColumn names are {}, {}, {}, {}'.format(row[0], row[1], row[2], row[3]))
line_count += 1
test3;2020-02-16;05:22:49;OK
test2;2020-02-16;05:22:25;OK
test1;2020-02-16;05:22:10;OK
test3;2020-02-16;05:22:49;OK
test2;2020-02-16;05:22:25;OK
test1;2020-02-16;05:22:10;OK
<body>
<h3>CSV Example - Read Write Examples</h3>
<ul>
<br>
<li>Read Operation
<ul>
<li>
<a href="{% url 'csv_simple_read' %}">Simple CSV Read Operation</a>
</li>
</ul>
</li>
</ul>
{{csv_data}}
{% if csv_data %}
sad
{{csv_data}}
{% endif %}
</body>
CSV示例-读写示例
- 读操作
-
{{csv_data}}
{%if csv_data%}
悲哀的
{{csv_data}}
{%endif%}
with open(file) as csv_file:
csv_reader = csv.reader(csv_file, delimiter=';')
line_count = 0
resultlist = []
for row in csv_reader:
resultdict = {}
resultdict['name'] = row[0]
resultdict['date'] = row[1]
resultdict['time'] = row[2]
resultdict['status'] = row[3]
resultlist.append(resultdict)
line_count += 1
return render(request, "csv_home.html", {'results': resultlist})
{% for result in results %}
{{ result.name }}
{{ result.date }}
{% endfor %}
确切地说，Anni您没有将HttpResponse返回到
csv\u simple\u readcsv\u home.htmlrender@rajasimond您在views.py文件的顶部导入了什么<代码>从django.shortcuts导入渲染否，在末尾。是的，我已经做了，就在我回答之后。现在，{context\u dict\u in\u case\u to\u show\u csv\u result}有一个问题appendAttributeError:'dict'对象没有属性'append'”GET/HTTP/1.1“500 68106