как правильно перейти на python-3.2?

а не надо ничего сносить - оно (python 2.6/2.7/3.0/3.1/3.2) в слот ставится

 # echo 'dev-lang/python:3.2" >> /etc/portage/package.unmask
 # emerge -auDN @world
 # emerge --ask --depclean
 # python-updater

eselect python list
Available Python interpreters:
[1] python2.7 *
[2] python3.2

* Configuration of dev-python/PyQt4-4.8.3 with CPython 3.2...
python3.2 configure.py --confirm-license --bindir=/usr/bin --destdir=/usr/lib/python3.2/site-packages --sipdir=/usr/share/sip --qsci-api --enable=QtCore --enable=QtNetwork --enable=QtScript --enable=QtTest --enable=QtXml --enable=QtDesigner --enable=QtGui --enable=QtScriptTools --enable=QtOpenGL --enable=QtSvg --enable=QtWebKit CC=i686-pc-linux-gnu-gcc CXX=i686-pc-linux-gnu-g++ LINK=i686-pc-linux-gnu-g++ LINK_SHLIB=i686-pc-linux-gnu-g++ CFLAGS=-O2 -march=native -fomit-frame-pointer -pipe CXXFLAGS=-O2 -march=native -fomit-frame-pointer -pipe LFLAGS=-Wl,-O1 -Wl,--as-needed
Traceback (most recent call last):
File "configure.py", line 37, in
import sipconfig
ImportError: No module named sipconfig
* ERROR: dev-python/PyQt4-4.8.3 failed (configure phase):
* Configuration failed with CPython 3.2 in configuration() function
*
* Call stack:
* ebuild.sh, line 56: Called src_configure
* environment, line 4761: Called python_execute_function '-s' 'configuration'
* environment, line 3266: Called die
* The specific snippet of code:
* die "${failure_message}";
*
* If you need support, post the output of 'emerge --info =dev-python/PyQt4-4.8.3',
* the complete build log and the output of 'emerge -pqv =dev-python/PyQt4-4.8.3'.
* The complete build log is located at '/var/tmp/portage/dev-python/PyQt4-4.8.3/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/dev-python/PyQt4-4.8.3/temp/environment'.
* S: '/var/tmp/portage/dev-python/PyQt4-4.8.3/work/PyQt-x11-gpl-4.8.3'

Вот такие вот дела :(