python-central byte-compile fails in upgrades of many packages.

Binary package hint: python-central

This happened and has been going after I upgrade from 9.04 to 9.10 alpha 5.
Whenever I do sudo apt-get dist-upgrade, I get error messages as following:

Setting up python-lazr-uri (1.0-0ubuntu1) ...
  File "/usr/bin/py_compilefiles", line 27
    print "file does not exist:", fullname
                               ^
SyntaxError: invalid syntax
pycentral: pycentral pkginstall: error byte-compiling files (17)
pycentral pkginstall: error byte-compiling files (17)
dpkg: error processing python-lazr-uri (--configure):
 subprocess installed post-installation script returned error exit status 1

followed by a LONG list of more error messages caused by dependency problems or similar ones as above. Find more details in the file attached.

This affects the upgrade/install of many packages, in my case, at these ones are among them:

  apport apport-gtk desktopcouch evolution-couchdb gcj-4.4-jre-lib gij-4.3
  gnome-orca libgcj-bc libgcj-common libgcj10 libgcj9-0 libgcj9-0-awt
  libgcj9-jar libjaxp1.3-java-gcj libxerces2-java-gcj python-apport
  python-configglue python-desktopcouch python-desktopcouch-records
  python-launchpadlib python-lazr-restfulclient python-lazr-uri
  python-matplotlib python-oauth python-pyatspi python-speechd
  python-twisted-core python-twisted-names python-twisted-web python-tz
  python-ubuntuone-client python-ubuntuone-storageprotocol python-wadllib
  ubuntuone-client ubuntuone-client-gnome