Error 500 on "Strings" for Javascript (all versions)

[ulyssear]

Expected Behavior

Concepts for Strings.

Actual Behavior

Error 500 on production.

On local (check screenshot below) :

Steps to Reproduce the Problem

1. Go to homepage
2. Select "Strings" as language concept
3. Select "Javascript" (all versions act the same)

Additional Info

I will fix that. Is it possible to be assigned ?

Error log

Internal Server Error: /reference/

AttributeError at /reference/
'list' object has no attribute 'strip'

Request Method: GET
Request URL: https://codethesaur.us/reference/?concept=strings&lang=javascript%3BECMAScript+2021
Django Version: 4.2.3
Python Executable: /app/.heroku/python/bin/python
Python Version: 3.11.4
Python Path: ['/app/.heroku/python/bin', '/app', '/app/.heroku/python/lib/python311.zip', '/app/.heroku/python/lib/python3.11', '/app/.heroku/python/lib/python3.11/lib-dynload', '/app/.heroku/python/lib/python3.11/site-packages']
Server time: Mon, 30 Oct 2023 19:32:57 +0000
Installed Applications:
['web.apps.WebConfig',
 'django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'markdownify.apps.MarkdownifyConfig']
Installed Middleware:
('django.middleware.security.SecurityMiddleware',
 'whitenoise.middleware.WhiteNoiseMiddleware',
 'django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.common.BrokenLinkEmailsMiddleware')


Traceback (most recent call last):
  File "/app/.heroku/python/lib/python3.11/site-packages/django/core/handlers/exception.py", line 55, in inner
    response = get_response(request)
               ^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/core/handlers/base.py", line 197, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/web/views.py", line 198, in concepts
    return render_concepts(request, languages, meta_structure, all_categories)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/web/views.py", line 228, in render_concepts
    return render(request, 'concepts.html', response)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/shortcuts.py", line 24, in render
    content = loader.render_to_string(template_name, context, request, using=using)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/loader.py", line 62, in render_to_string
    return template.render(context, request)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/backends/django.py", line 61, in render
    return self.template.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 175, in render
    return self._render(context)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 167, in _render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/loader_tags.py", line 157, in render
    return compiled_parent._render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 167, in _render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/loader_tags.py", line 63, in render
    result = block.nodelist.render(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/defaulttags.py", line 238, in render
    nodelist.append(node.render_annotated(context))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/defaulttags.py", line 238, in render
    nodelist.append(node.render_annotated(context))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/defaulttags.py", line 238, in render
    nodelist.append(node.render_annotated(context))
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/library.py", line 278, in render
    return t.render(new_context)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 177, in render
    return self._render(context)
           ^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 167, in _render
    return self.nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/defaulttags.py", line 321, in render
    return nodelist.render(context)
           ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in render
    return SafeString("".join([node.render_annotated(context) for node in self]))
                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1005, in <listcomp>
    return SafeString("".join([node.render_annotated(context) for node in self]))
                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 966, in render_annotated
    return self.render(context)
           ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 1064, in render
    output = self.filter_expression.resolve(context)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/django/template/base.py", line 742, in resolve
    new_obj = func(obj, *arg_vals)
              ^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/markdownify/templatetags/markdownify.py", line 109, in markdownify
    html = markdown.markdown(text or "", extensions=extensions)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/markdown/core.py", line 387, in markdown
    return md.convert(text)
           ^^^^^^^^^^^^^^^^
  File "/app/.heroku/python/lib/python3.11/site-packages/markdown/core.py", line 248, in convert
    if not source.strip():
           ^^^^^^^^^^^^

Exception Type: AttributeError at /reference/
Exception Value: 'list' object has no attribute 'strip'
Raised during: web.views.concepts
Request information:
USER: AnonymousUser

[geekygirlsarah]

Huh, I swore we fixed this with #674, and now I'm curious if it's the same issue or not.

I assigned it to you.

[github-actions]

This issue has been inactive for 341 hours (14.21 days) and will be unassigned after 67 more hours (2.79 days). If you have questions, please leave a comment, message @codethesaurus or @geekygirlsarah on Twitter, or email coreteam@codethesaur.us.If you are still working on this issue, that's fine. Please comment here to tell the bot to give you more time.

[ulyssear]

Hey ! I've forgotten this issue. I will fix that this week.