无法在Django中下载文件

from django.http import FileResponse
import os

def download_file(request):
    file_path = '/path/to/file'  # 文件的绝对路径
    file_name = os.path.basename(file_path)  # 获取文件名

    # 打开文件并创建FileResponse对象
    file = open(file_path, 'rb')
    response = FileResponse(file)

    # 设置响应头，指定文件名
    response['Content-Disposition'] = f'attachment; filename="{file_name}"'

    return response

from django.urls import path
from .views import download_file

urlpatterns = [
    path('download/', download_file, name='download'),
]

<a href="{% url 'download' %}">下载文件</a>