问TypeError at /wiki/HTML

EN

urlpatterns = [
path("", views.index, name="index"),
path("wiki/", views.title, name="title"),]

def title(request, title_name):
return render(request, "encyclopedia/title.html",{
    "entry": util.get_entry(title_name),
    "title": util.get_page_name(title_name)
})

def get_entry(title):

try:
    f = default_storage.open(f"entries/{title}.md")
    return f.read().decode("utf-8")
except FileNotFoundError:
    return None
def get_page_name(title):
try:
    name = os.path.basename(f'entries/{title}')
    return name
except TypeError:
    return None

{% extends "encyclopedia/layout.html" %}

{% block title %}

<p>{{ title }}</p>

{% endblock title %}

{% block body %}
<p> {{ entry }}</p>
{% endblock body %}