package python-serial 2.3-1 failed to install/upgrade:

[labroid]

This happened on a Hardy -> Lucid upgrade on a 64-bit installation.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: python-serial 2.3-1
ProcVersionSignature: Ubuntu 2.6.24-27.69-generic
Uname: Linux 2.6.24-27-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu May 27 13:36:45 2010
ErrorMessage:
 ErrorMessage: subprocess installed post-installation script returned error exit status 1
PackageArchitecture: all
SourcePackage: pyserial
Title: package python-serial 2.3-1 failed to install/upgrade:

[Jean-Baptiste Lallement (jibel)]

Thanks for your report.

The error is
---
etting up python-serial (2.3-1) ...

pycentral: pycentral pkginstall: Not overwriting local files:

   dpkg: /usr/lib/python2.5/site-packages/serial/__init__.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialjava.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialposix.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialutil.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialwin32.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/sermsdos.py not found.

pycentral pkginstall: Not overwriting local files:

   dpkg: /usr/lib/python2.5/site-packages/serial/__init__.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialjava.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialposix.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialutil.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/serialwin32.py not found.

   dpkg: /usr/lib/python2.5/site-packages/serial/sermsdos.py not found.

This happens when you install a python module and pycentral refuses to overwrite it. This is already reported in bug 291262.
I'm marking this report as duplicate.
Don't hesitate to submit any new bug.