package python-libxml2 2.9.1+dfsg1-3ubuntu4.8 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1

[rahul nikam]

    bug

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: python-libxml2 2.9.1+dfsg1-3ubuntu4.8
ProcVersionSignature: Ubuntu 3.13.0-112.159-generic 3.13.11-ckt39
Uname: Linux 3.13.0-112-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.23
Architecture: amd64
Date: Fri Mar 17 10:04:59 2017
DuplicateSignature: package:python-libxml2:2.9.1+dfsg1-3ubuntu4.8:subprocess new pre-removal script returned error exit status 1
ErrorMessage: subprocess new pre-removal script returned error exit status 1
InstallationDate: Installed on 2017-02-07 (37 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SourcePackage: libxml2
Title: package python-libxml2 2.9.1+dfsg1-3ubuntu4.8 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Seth Arnold (seth-arnold)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[Seth Arnold (seth-arnold)]

Preparing to unpack .../python-libxml2_2.9.1+dfsg1-3ubuntu4.9_amd64.deb ...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
  File "/usr/bin/pyclean", line 63
    except (IOError, OSError), e:
                             ^
SyntaxError: invalid syntax
dpkg: error processing archive /var/cache/apt/archives/python-libxml2_2.9.1+dfsg1-3ubuntu4.9_amd64.deb (--unpack):
 subprocess new pre-removal script returned error exit status 1