I've this piece of code to add files to a zip in Django. Works fine when media is local but when using an s3 bucket I get the following error:
FileNotFoundError at /en/admin/certification/application/
[Errno 2] No such file or directory: 'https://bucket-name.s3.amazonaws.com/media/application_files/name_of_the_pdf.pdf'
Here's the code:
filename = settings.MEDIA_ROOT + q.user.username + '-' + q.certification.standard.name + '-' + q.certification.name
zf = zipfile.ZipFile(byte, "w")
zipped_files = []
zip_filename = filename + '.zip'
csv_filename = filename + '.csv'
with open(csv_filename, 'w') as csvfile:
filewriter = csv.writer(csvfile, delimiter=',', quoting=csv.QUOTE_MINIMAL)
for answer in q.answer_set.all():
if answer.question.question_type in ['file', 'files']:
if answer.f :
if 'RDS_HOSTNAME' in os.environ:
res = answer.f.url
else: res = settings.BASE_DIR + answer.f.url
zf.write(res)
elif answer.question.question_type == 'text' : res = answer.text
else : res = answer.checkbox.name
filewriter.writerow([answer.question.question, res])
zf.write(csv_filename)
zf.close()
resp = HttpResponse(
byte.getvalue(), content_type="application/x-zip-compressed")
resp['Content-Disposition'] = 'attachment; filename=%s' % zip_filename
And the traceback:
Traceback:
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
126. response = self.process_exception_by_middleware(e, request)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
124. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in wrapper
604. return self.admin_site.admin_view(view)(*args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapped_view
142. response = view_func(request, *args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/views/decorators/cache.py" in _wrapped_view_func
44. response = view_func(request, *args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/contrib/admin/sites.py" in inner
223. return view(request, *args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapper
45. return bound_method(*args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/utils/decorators.py" in _wrapped_view
142. response = view_func(request, *args, **kwargs)
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in changelist_view
1701. response = self.response_action(request, queryset=cl.get_queryset(request))
File "/opt/python/run/venv/local/lib/python3.6/site-packages/django/contrib/admin/options.py" in response_action
1400. response = func(self, request, queryset)
File "/opt/python/current/app/certification/admin_actions.py" in download_application
31. zf.write(res)
File "/usr/lib64/python3.6/zipfile.py" in write
1617. zinfo = ZipInfo.from_file(filename, arcname)
File "/usr/lib64/python3.6/zipfile.py" in from_file
507. st = os.stat(filename)
Exception Type: FileNotFoundError at /en/admin/certification/application/
Exception Value: [Errno 2] No such file or directory: 'https://bucket-name.s3.amazonaws.com/media/application_files/name_of_the_pdf.pdf'
I have changed the bucket and file names to examples.
What have I got wrong?
This is how I resolved it:
if answer.f :
if 'RDS_HOSTNAME' in os.environ:
res = answer.f.url
response = requests.get(answer.f.url)
zf.writestr(answer.f.url, response.content)
else:
res = settings.BASE_DIR + answer.f.url
zf.write(res)