package python-libxml2 2.9.3+dfsg1-1ubuntu0.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Rohit bhardwaj]

while installing yum this error occured

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: python-libxml2 2.9.3+dfsg1-1ubuntu0.5
ProcVersionSignature: Ubuntu 4.13.0-26.29~16.04.2-generic 4.13.13
Uname: Linux 4.13.0-26-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.15
Architecture: amd64
Date: Sun Jan 28 12:28:55 2018
DuplicateSignature:
 package:python-libxml2:2.9.3+dfsg1-1ubuntu0.5
 Setting up python-libxml2 (2.9.3+dfsg1-1ubuntu0.5) ...
 /var/lib/dpkg/info/python-libxml2.postinst: 6: /var/lib/dpkg/info/python-libxml2.postinst: pycompile: not found
 dpkg: error processing package python-libxml2 (--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 2018-01-13 (14 days ago)
InstallationMedia: Ubuntu 16.04.3 LTS "Xenial Xerus" - Release amd64 (20170801)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.3
 apt 1.2.24
SourcePackage: libxml2
Title: package python-libxml2 2.9.3+dfsg1-1ubuntu0.5 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

[Expired for libxml2 (Ubuntu) because there has been no activity for 60 days.]