我的电源线出了什么问题(上传文件到django)

# forms.py
from django import forms

class UploadFileForm(forms.Form):
    file = forms.FileField()

# views.py
from django.shortcuts import render
from .forms import UploadFileForm

def upload_file(request):
    if request.method == 'POST':
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            file = request.FILES['file']
            handle_uploaded_file(file)
            return render(request, 'success.html')
    else:
        form = UploadFileForm()
    return render(request, 'upload.html', {'form': form})

def handle_uploaded_file(file):
    with open('path/to/save/file', 'wb+') as destination:
        for chunk in file.chunks():
            destination.write(chunk)

# upload.html
<form method="post" enctype="multipart/form-data">
    {% csrf_token %}
    {{ form }}
    <button type="submit">Upload</button>
</form>

# success.html
<p>File uploaded successfully!</p>