django csv file upload managing

Question

def createlist(request):
    if request.method == 'POST':
        files =  request.FILES['ListFile']
        print(type(files))
        csv_file = csv.DictReader(files)
        for i in csv_file:
            print(i)
    return HttpResponse("ok")

This gives
class 'django.core.files.uploadedfile.InMemoryUploadedFile'
_csv.Error: iterator should return strings, not bytes (did you open the file in text mode?)
Here i post this file using ajax
js:

$('#form1').ajaxForm(function(data) { 
           alert(data) ; 
        });

What does `print([type(x) for x in files.readlines()])` give you? — dilbert, May 29 '14 at 07:26
@dilbert any solution to read files as dictreader to get as dictionary — itzMEonTV, May 29 '14 at 07:45
You need to either a) change `request.FILES['ListFile']` to a non-binary read mode or b) read all of `request.FILES['ListFile']` into an intermediate file-like object. I would recommend a). — dilbert, May 29 '14 at 07:47

score 14 · Accepted Answer · answered Nov 17 '14 at 15:23

Using codec.iterdecode, i solved it.I think this is due to python 3.x

import codecs

def createlist(request):
    if request.method == "POST":    
        fil =  request.FILES['ListFile']
        csvfile = csv.DictReader(codecs.iterdecode(fil, 'utf-8'))
        for i in csv_file:
            print(i)
    return HttpResponse("ok")

score 0 · Answer 2 · edited May 23 '17 at 12:02

0

The CSV doesn't support UTF8. It needs the file-like object to be encoded. Refer to here for more information.

import codecs

def createlist(request):
    if request.method == "POST":
        utf8_file = codecs.EncodedFile(request.FILES["ListFile"],"utf-8")
        csv_file = csv.DictReader(utf8_file)
        for i in csv_file:
            print(i)
    return HttpResponse("ok")

edited May 23 '17 at 12:02

Community

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answered May 29 '14 at 07:54

dilbert

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_csv.Error: iterator should return strings, not bytes (did you open the file in text mode?) – itzMEonTV May 29 '14 at 08:31

django csv file upload managing

2 Answers2