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首页 > 解决方案 > join() 参数必须是 str 或字节，而不是“元组”——在 Django 中制作报纸项目时

python - join() 参数必须是 str 或字节，而不是“元组”——在 Django 中制作报纸项目时

问题描述

我对 Django 比较陌生，并试图按照“初学者的 Django”一书从 django 制作一个模拟报纸应用程序。

我为文章创建了一个 CreateView，并在项目的文章应用程序中将其路由为“new/”，并设置了正确的模板。

现在重定向到 '/new/' 会导致这个 TypeError。

请求网址： http: //127.0.0.1 :8000/articles/new/

Django 版本：3.0.6

异常类型：TypeError

异常值：join() 参数必须是 str 或 bytes，而不是 'tuple'

异常位置：_check_arg_types 中的 c:\users\adi\anaconda3\lib\genericpath.py，第 149 行

==================================================== =======================

Traceback (most recent call last):
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\core\handlers\exception.py", line 34, in inner
    response = get_response(request)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\core\handlers\base.py", line 145, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\core\handlers\base.py", line 143, in _get_response
    response = response.render()
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\response.py", line 105, in render
    self.content = self.rendered_content
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\response.py", line 81, in rendered_content
    template = self.resolve_template(self.template_name)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\response.py", line 63, in resolve_template
    return select_template(template, using=self.using)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\loader.py", line 42, in select_template
    return engine.get_template(template_name)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\backends\django.py", line 34, in get_template
    return Template(self.engine.get_template(template_name), self)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\engine.py", line 143, in get_template
    template, origin = self.find_template(template_name)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\engine.py", line 125, in find_template
    template = loader.get_template(name, skip=skip)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\loaders\base.py", line 18, in get_template
    for origin in self.get_template_sources(template_name):
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\template\loaders\filesystem.py", line 36, in get_template_sources
    name = safe_join(template_dir, template_name)
  File "C:\Users\ADI\.virtualenvs\DJANGOdEV-QAaUnZ0o\lib\site-packages\django\utils\_os.py", line 17, in safe_join
    final_path = abspath(join(base, *paths))
  File "c:\users\adi\anaconda3\lib\ntpath.py", line 115, in join
    genericpath._check_arg_types('join', path, *paths)
  File "c:\users\adi\anaconda3\lib\genericpath.py", line 149, in _check_arg_types
    (funcname, s.__class__.__name__)) from None

TypeError：join() 参数必须是 str 或字节，而不是“元组”

createView 是：

class ArticleCreateView(CreateView):
    model = Article
    template_name = 'article_new.html',
    fields = ('title', 'body', 'author')

并且url路由是：

path('new/', ArticleCreateView.as_view(), name='article_new'),

标签： pythondjangodjango-modelsdjango-formsdjango-views

解决方案

你需要,从template_name = 'article_new.html',

正确的视图应如下所示：

class ArticleCreateView(CreateView):
    model = Article
    template_name = 'article_new.html'
    fields = ('title', 'body', 'author')

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