Django error solution: TemplateDoesNotExist at /polls/

1. Introduction to the problem

In Django4.1's official website tutorial - writing your first Django application, part 3, step by step, you will get an error:

 There are also tips below:

2. Problem thinking

From the prompt, we know that the django-mysite (project name)/templates/polls/index.html and django-mysite (project name)/templates/polls/detail.html we wrote do not exist, because the python interpreter is installed in Python lib/site-packages/django/... under the path to search.

Obviously, our project was not created in the Python installation directory.

So the solution is much clearer: modify the directory where django retrieves index.html.

3. Looking for answers

In the following website, I found the answer, please see [Solution 6]

TemplateDoesNotExist in /polls/answers - Love Code Network (likecs.com)

4. Solve the problem

The specific operation is:

Modify the configuration of TEMPLATES (template) in django-mysite (project name)/mysite/settings.py so that the default address is the current project path.

That is, add these codes in the appropriate position:
 

import os

# 这个变量默认是没有的，建议在默认的TEMPLAETS变量前面一行定义
TEMPLATE_DIR = os.path.join(BASE_DIR,'templates')

# 然后在TEMPLATES变量中的'DIRS':[]的括号里，加上刚定义的变量，即
TEMPLATES = [
    {
        # 前面省略
        'DIRS': [TEMPLATE_DIR],
        # 后面省略
    }
]

Then enter 127.0.0.1:8000/polls/ in the browser, no error will be reported