Error: A bytes-like object is required, not 'list'-CodePudding

I am developing a small project that aims to enable to the user to submit a zip file. The system should read the file, extract it and save its contents to the database.

I am having this error : a bytes-like object is required, not 'list' because I tried to use BytesIo. without it, the error said :" fpin.seek(0, 2) AttributeError: 'list' object has no attribute 'seek'"

My code looks like this

files = request.FILES.getlist('document[]')
with zipfile.ZipFile(io.BytesIO(files), "r")as archive:
    for zippedFileName in archive.namelist():
        with archive.open(zippedFileName) as myfile:
            with io.BytesIO() as buf:
                buf.write(myfile.read())
                buf.seek(0)                                   
                file = File(buf, zippedFileName).decode('utf-8')
                rbe = UploadedFile.objects.create(document=file)                                 
                rbe.user= request.user
                rbe.save()                                   
                return render(request, 'uploader/index.html', {'files': files})

The error or traceback looks like this

CodePudding user response：

In Django, request.FILES.getlist returns a list of UploadedFile objects, each of which has a file attribute, a file-like object that you can pass directly to the ZipFile constructor.

Since your code apparently assumes that there is only one UploadedFile object in the list returned by request.FILES.getlist, you can unpack it like this:

uploaded_file, = request.FILES.getlist('document[]')
with zipfile.ZipFile(uploaded_file.file, "r") as archive:
    for zippedFileName in archive.namelist():
        ...

# you should return after the for loop, not within it
return render(request, 'uploader/index.html', {'files': [uploaded_file]})