执行`request.POST.copy()时发生内存错误‘

from django.http import HttpResponse
from django.views.decorators.csrf import csrf_exempt
import tempfile

@csrf_exempt
def upload_file(request):
    if request.method == 'POST':
        try:
            # 创建一个临时文件
            with tempfile.NamedTemporaryFile(delete=False) as temp_file:
                for chunk in request.FILES['file'].chunks():
                    temp_file.write(chunk)
                temp_file_path = temp_file.name
            return HttpResponse(f'File uploaded successfully to {temp_file_path}')
        except MemoryError as e:
            return HttpResponse('Memory error occurred', status=500)
    return HttpResponse('Invalid request', status=400)