package python-enum34 1.1.2-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

it just came up. I don't know how to recreate the bug.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: python-enum34 1.1.2-1
ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Sat Oct 14 03:00:40 2017
Dependencies:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-10-12 (1 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SourcePackage: enum34
Title: package python-enum34 1.1.2-1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)