Django: SystemError: <built-in function uwsgi_sendfile> returned a result with an error set

Question

在本地主机上它工作得很好但在 pythonanywhere 上它不再工作了。当我按下应该下载 word 文档的按钮时，我收到此错误消息：SystemError：返回了一个错误集的结果。 views.py:

def downloadWord(request, pk):
order = Order.objects.get(pk=pk)
order_items = order.order_items.all()




date = f'{order.date}'
d =date[8:]
y = date[:4]
m = date[5:7]
date = f'{d}.{m}.{y}'


context={

    'order_items': order_items,
    'order': order,
    'date': date

}

byte_io = BytesIO()
tpl = DocxTemplate(os.path.join(BASE_DIR, 'media/word_documents/order.docx'))
tpl.render(context)
tpl.save(byte_io)
byte_io.seek(0)
data = dict()

return FileResponse(byte_io, as_attachment=True, filename=f'order_{order.title}.docx')

我也尝试使用 werkzeug 的 FileWrapper，但它显示 "AttributeError: 'FileWrapper' object has no attribute 'write'":

from werkzeug.wsgi import FileWrapper


def downloadWord(request, pk): 
order = Order.objects.get(pk=pk) 
order_items = order.order_items.all()

date = f'{order.date}'
d =date[8:]
y = date[:4]
m = date[5:7]
date = f'{d}.{m}.{y}'


context={

    'order_items': order_items,
    'order': order,
    'date': date

}

byte_io = BytesIO()
byte_io = FileWrapper(byte_io)
tpl = DocxTemplate(os.path.join(BASE_DIR, 'media/word_documents/order.docx'))
tpl.render(context)
tpl.save(byte_io)
byte_io.seek(0)


return FileResponse(byte_io, as_attachment=True, filename=f'order_{order.title}.docx')

Answer 1

我认为您可能以错误的顺序创建了那些不同的流 -- 试试这个：

tpl = DocxTemplate(os.path.join(BASE_DIR, 'media/word_documents/order.docx'))
tpl.render(context)

byte_io = BytesIO()
tpl.save(byte_io)
byte_io.seek(0)

return FileResponse(FileWrapper(byte_io), as_attachment=True, filename=f'order_{order.title}.docx')

Django: SystemError: <built-in function uwsgi_sendfile> returned a result with an error set

Django: SystemError: <built-in function uwsgi_sendfile> returned a result with an error set

python

django

pythonanywhere

python-docx