package python3-twisted 17.9.0-2ubuntu0.1 failed to install/upgrade: installed python3-twisted package post-installation script subprocess returned error exit status 1

[Matt Drake]

This happened during a do-release-upgrade on Ubuntu Server

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: python3-twisted 17.9.0-2ubuntu0.1
ProcVersionSignature: Ubuntu 4.15.0-122.124-generic 4.15.18
Uname: Linux 4.15.0-122-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.19
Architecture: amd64
Date: Tue Nov 10 16:37:32 2020
ErrorMessage: installed python3-twisted package post-installation script subprocess returned error exit status 1
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.9, python3-minimal, 3.6.7-1~18.04
PythonDetails: /usr/bin/python2.7, Python 2.7.17, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.3
 apt 1.6.12ubuntu0.1
SourcePackage: twisted
Title: package python3-twisted 17.9.0-2ubuntu0.1 failed to install/upgrade: installed python3-twisted package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to bionic on 2020-11-11 (0 days ago)

[Matt Drake (mattduckman)]

I investigated after submitting

All of the __pycache__ directories mentioned in the log were corrupted from some sort of apparent disk or fs issue. I was able to remove them and restart the upgrade, and it finished without any other errors

This could probably be closed