package python3-bsddb3 6.1.0-1build2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Rituparna]

I get an error popup during startup that Ubuntu has faced errors, with the option to Submit Error Report. This is the error report

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: python3-bsddb3 6.1.0-1build2
ProcVersionSignature: Ubuntu 4.15.0-99.100~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-99-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.23
Architecture: amd64
Date: Sat May 9 14:54:46 2020
DuplicateSignature:
 package:python3-bsddb3:6.1.0-1build2
 Setting up python3-bsddb3 (6.1.0-1build2) ...
 /var/lib/dpkg/info/python3-bsddb3.postinst: 6: /var/lib/dpkg/info/python3-bsddb3.postinst: py3compile: not found
 dpkg: error processing package python3-bsddb3 (--configure):
  subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationDate: Installed on 2017-12-30 (862 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.6
 apt 1.2.32
SourcePackage: python-bsddb3
Title: package python3-bsddb3 6.1.0-1build2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)