package python3-uno 1:6.4.6-0ubuntu0.20.04.1 failed to install/upgrade: new python3-uno package pre-removal script subprocess returned error exit status 1

It shows that debpython module is not there but it is not installable as well.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: python3-uno 1:6.4.6-0ubuntu0.20.04.1
ProcVersionSignature: Ubuntu 5.8.0-50.56~20.04.1-generic 5.8.18
Uname: Linux 5.8.0-50-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.16
Architecture: amd64
CasperMD5CheckResult: skip
Date: Sun Apr 18 12:50:16 2021
ErrorMessage: new python3-uno package pre-removal script subprocess returned error exit status 1
InstallationDate: Installed on 2021-04-02 (17 days ago)
InstallationMedia: Ubuntu 20.04.2.0 LTS "Focal Fossa" - Release amd64 (20210209.1)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.5
SourcePackage: libreoffice
Title: package python3-uno 1:6.4.6-0ubuntu0.20.04.1 failed to install/upgrade: new python3-uno package pre-removal script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)