package python-mysqldb 1.2.3-2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Runner]

when I update my System ,the error occur.

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: python-mysqldb 1.2.3-2ubuntu1
ProcVersionSignature: Ubuntu 3.13.0-53.89-generic 3.13.11-ckt19
Uname: Linux 3.13.0-53-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.1-0ubuntu3.11
AptOrdering:
 python-mysqldb: Install
 python-mysqldb: Configure
Architecture: amd64
Date: Sat Aug 15 14:44:00 2015
DpkgHistoryLog:
 Start-Date: 2015-08-15 14:43:51
 Commandline: apt-get install python-mysqldb
 Install: python-mysqldb:amd64 (1.2.3-2ubuntu1)
DuplicateSignature: package:python-mysqldb:1.2.3-2ubuntu1:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2015-02-08 (188 days ago)
InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2)
SourcePackage: python-mysqldb
Title: package python-mysqldb 1.2.3-2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.