Comment 2 for bug 1848203

Hi,

I am getting this same error with multipart upload on duplicity 0.8.13 (and Python3):
. Backtrace of previous error: Traceback (innermost last):
. File "/usr/local/lib/python3.6/dist-packages/duplicity/backend.py", line 374, in inner_retry
. return fn(self, *args)
. File "/usr/local/lib/python3.6/dist-packages/duplicity/backend.py", line 545, in put
. self.__do_put(source_path, remote_filename)
. File "/usr/local/lib/python3.6/dist-packages/duplicity/backend.py", line 531, in __do_put
. self.backend._put(source_path, remote_filename)
. File "/usr/local/lib/python3.6/dist-packages/duplicity/backends/_boto_single.py", line 264, in _put
. self.upload(source_path.name, key, headers)
. File "/usr/local/lib/python3.6/dist-packages/duplicity/backends/_boto_multi.py", line 192, in upload
. raise BackendException(u"Multipart upload failed. Aborted.")
. duplicity.errors.BackendException: Multipart upload failed. Aborted.

duplicity \
--name backup \
--full-if-older-than=1W \
--s3-use-new-style \
--num-retries=5 \
--volsize=2048 \
--s3-use-multiprocessing \
--s3-multipart-chunk-size=256 \
--log-file=/backup-logdir/duplicity_backup.log \
--archive-dir=/duplicity_archive \
-v9 \
/back-me-up s3+http://my-bucket/my_app

Package Version
--------------- ---------------
awscli 1.18.58
boto 2.49.0
botocore 1.16.8
certifi 2018.1.18
cffi 1.14.0
chardet 3.0.4
colorama 0.4.3
cryptography 2.9.2
docutils 0.15.2
duplicity 0.8.13
fasteners 0.15
future 0.18.2
idna 2.6
jmespath 0.10.0
lockfile 0.12.2
monotonic 1.5
ndg-httpsclient 0.5.1
oauthlib 3.1.0
pip 20.1
psutil 5.7.0
pyasn1 0.4.8
pycparser 2.20
pycrypto 2.6.1
pygobject 3.26.1
pyOpenSSL 19.1.0
python-apt 1.6.5+ubuntu0.2
python-dateutil 2.8.1
PyYAML 5.3.1
requests 2.23.0
rsa 3.4.2
s3transfer 0.3.3
setuptools 39.0.1
setuptools-scm 3.5.0
six 1.11.0
urllib3 1.25.9
wheel 0.34.2