[Django] #29276: Advise to turn the headers of HTTPResponse from str to bytes automatically

[Django]

#29276: Advise to turn the headers of HTTPResponse from str to bytes 
automatically
-------------------------------------+-------------------------------------
               Reporter:  sanjiely   |          Owner:  nobody
                   Type:             |         Status:  new
  Cleanup/optimization               |
              Component:  HTTP       |        Version:  2.0
  handling                           |       Keywords:  HTTPResponse header
               Severity:  Normal     |  str bytes
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
-------------------------------------+-------------------------------------
 Python: 3.6.4
 Django: 2.0.3

 When I return a HttpResponse object, Django library will do the job for
 me: turn my content from str to bytes silently.
 But Django will not do the same work to the headers of HTTPResponse.

 That is to say, the sample as below in the official document is not
 precisely correct.
 (Page: https://docs.djangoproject.com/en/2.0/ref/request-response/)
 >>> response = HttpResponse(my_data, content_type='application/vnd.ms-
 excel')
 >>> response['Content-Disposition'] = 'attachment; filename="foo.xls"'

 The precise usage should be:
 >>> response['Content-Disposition'] = 'attachment;
 filename="foo.xls"'.encode('utf-8')

 Otherwise, everthing will out of control If I have a Chinse character in
 the filename.
 Wrong:
 >>> response['Content-Disposition'] = 'attachment; filename="中中中中中
 foo.xls"'
 Correct:
 >>> response['Content-Disposition'] = 'attachment; filename=中中中中中
 foo.xls'.encode('utf-8')

 Can we accept this ticket and do a minor improvement? Then we would
 happily only handle str in Django other than str and bytes together.
 Thanks.

 Yong Li

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29276>
Django <https://code.djangoproject.com/>
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