package python3-lxml:amd64 4.2.1-1 failed to install/upgrade: problemi con le dipendenze - lasciato non configurato

[Davide]

I do not know the cause of the problem

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: python3-lxml:amd64 4.2.1-1
ProcVersionSignature: Ubuntu 4.15.0-38.41-lowlatency 4.15.18
Uname: Linux 4.15.0-38-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu7.4
AptOrdering:
 linux-image-4.15.0-34-lowlatency:amd64: Remove
 NULL: ConfigurePending
Architecture: amd64
Date: Sun Nov 4 22:03:36 2018
ErrorMessage: problemi con le dipendenze - lasciato non configurato
InstallationDate: Installed on 2018-05-03 (184 days ago)
InstallationMedia: Ubuntu-Studio 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal, 3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2.1
 apt 1.6.6
SourcePackage: lxml
Title: package python3-lxml:amd64 4.2.1-1 failed to install/upgrade: problemi con le dipendenze - lasciato non configurato
UpgradeStatus: No upgrade log present (probably fresh install)