kawanerio@MoebuntuStudio11:~$ sudo do-release-upgrade
[sudo] kawanerio のパスワード:
Traceback (most recent call last):
File "/usr/bin/do-release-upgrade", line 11, in <module>
from UpdateManager.Core.MetaRelease import MetaReleaseCore
File "/usr/lib/python3/dist-packages/UpdateManager/Core/MetaRelease.py", line 26
from __future__ import absolute_import, print_function
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
SyntaxError: from __future__ imports must occur at the beginning of the file
```
`from __future__ import absolute_import, print_function` よりもあとに
```
import ssl
ssl._create_default_https_context = ssl._create_unverified_context
```
を置けっておこられた。
