ovod@calculate ~ $ equery b cl-install * Searching for cl-install ...
sys-apps/calculate-install-2.2.5 (/usr/bin/cl-install)

ovod@calculate ~ $ emerge --info
Portage 2.2.0_alpha15_p2 (default/linux/x86/10.0, gcc-4.4.5, glibc-2.12.2-r0, 2.6.36.2-calculate i686) =================================================================
System uname: Linux-2.6.36.2-calculate-i686-Intel-R-Core-TM-_i3_CPU_M_330@_2.13GHz-with-gentoo-2.0.1
Timestamp of tree: Sat, 22 Jan 2011 17:30:01 +0000
ccache version 3.1.4 [enabled]
app-shells/bash: 4.1_p9
dev-java/java-config: 2.1.11-r3
dev-lang/python: 2.6.6-r1, 2.7.1, 3.1.3
dev-util/ccache: 3.1.4
dev-util/cmake: 2.8.3-r1
sys-apps/baselayout: 2.0.1-r1
sys-apps/openrc: 0.7.0
sys-apps/sandbox: 2.4
sys-devel/autoconf: 2.13, 2.68
sys-devel/automake: 1.7.9-r2, 1.8.5-r4, 1.9.6-r3, 1.10.3, 1.11.1
sys-devel/binutils: 2.21
sys-devel/gcc: 4.3.5, 4.4.5, 4.5.2
sys-devel/gcc-config: 1.4.1
sys-devel/libtool: 2.4-r1
sys-devel/make: 3.82
virtual/os-headers: 2.6.36.1 (sys-kernel/linux-headers)
Repositories: gentoo calculate voip mozilla crg x11 rion
ACCEPT_KEYWORDS="x86 ~x86 ~x86-linux"
ACCEPT_LICENSE=""
CBUILD="i686-pc-linux-gnu"
CFLAGS="-march=prescott -O2 -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/openvpn/easy-rsa /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/eselect/postgresql /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.2/ext-active/ /etc/php/apache2-php5/ext-active/ /etc/php/cgi-php5.2/ext-active/ /etc/php/cgi-php5/ext-active/ /etc/php/cli-php5.2/ext-active/ /etc/php/cli-php5/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo"
CXXFLAGS="-march=prescott -O2 -fomit-frame-pointer -pipe"
DISTDIR="/var/calculate/remote/distfiles"
EMERGE_DEFAULT_OPTS="--jobs=4"
FEATURES="assume-digests binpkg-logs candy ccache distlocks fixlafiles fixpackages metadata-transfer news nostrip parallel-fetch preserve-libs protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox"
GENTOO_MIRRORS="http://distfiles.gentoo.org"
LANG="ru_RU.utf8"
LDFLAGS="-Wl,--as-needed"
LINGUAS="en ru"
MAKEOPTS="-j5"
PKGDIR="/var/calculate/remote/packages/CLD/i686"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/calculate/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/calculate /var/lib/layman/voip /var/lib/layman/mozilla /var/lib/layman/crg /var/lib/layman/x11 /var/lib/layman/rion"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X a52 aac aacs aalib acl acpi alisp alsa amr apng audiofile avi bash-completion berkdb bfq bfs bittorrent bluetooth bluray bzip2 cairo cddb cdparanoia cdr chardet chm clamav cli consolekit cpudetection cracklib crypt css cups custom-cpuopts cxx dbus dirac djvu dri dts dv dvd dvdr dvdread dynamicplugin ebook enable-nls enca encode exif faac fbcon fdftk ffmpeg flac flash foomaticdb fortran ftp gallium gd gdbm ggi gif gphoto2 gpm gtk hal hardened hipe iconv id3tag ieee1394 imagemagick ipod ipv6 irc jabber javascript jingle jpeg jpeg2k kde ldap libass libcaca libmpeg2 libnotify libwww lirc logrotate lzo mad madwifi matroska mbox mikmod mmx mmxext mng modules moonlight mp3 mpeg mplayer mudflap musepack mysql nas ncurses networkmanager nfs nls nptl nptlonly nsplugin nvidia ogg oggvorbis openal opencore-amr openexr opengl openmp oscar pam pcre pdf perl png policykit portaudio pppd python qt3support qt4 quicktime raw rdesktop readline rtmp run-as-root samba scanner schroedinger sdl semantic-desktop session slang smp speex spell srt sse sse2 sse3 sse4.1 sse4.2 sse4a sse5 ssl ssse3 svg sysfs system-v8 tcpd tga theora tiff truetype twolame unicode usb userlocales v4l v4l2 vaapi vcd vdpau vhosts vidix vlm vorbis vpx webkit win32codecs wma-fixed wmf wxwindows x264 x86 xanim xcomposite xine xinerama xorg xpm xv xvid xvmc yahoo zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALCULATE="printer wireless" CAMERAS="" CDISTRO="CLD desktop" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" ELIBC="glibc" FOO2ZJS_DEVICES="*" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="keyboard mouse synaptics evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en ru" PHP_TARGETS="php5-3 php5-2" RUBY_TARGETS="ruby18" USERLAND="GNU" VIDEO_CARDS="radeon radeonhd intel fbdev vesa glint fglrx ati" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset: CPPFLAGS, CTARGET, FFLAGS, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

Попробуйте обновить утилиты до версии 2.2.8:

layman -S; emerge calculate-install-gui calculate-client calculate-desktop

сделал, теперь

ovod@calculate ~ $ cl-install
Traceback (most recent call last):
File "/usr/bin/cl-install", line 28, in <module>
from cl_install_cmd import install_cmd
File "/usr/lib/calculate-2.2/calculate-install/pym/cl_install_cmd.py", line 20, in <module>
from cl_install import cl_install, InstallError, app, version,\
File "/usr/lib/calculate-2.2/calculate-install/pym/cl_install.py", line 57, in <module>
from cl_template import template
File "/usr/lib/calculate-2.2/calculate-lib/pym/cl_template.py", line 22, in <module>
from xml import xpath
ImportError: cannot import name xpath

починилось после пересборки пакета pyxml