trying to emerge zope with collision protect on turned out python versions collide. Reproducible: Always Steps to Reproduce: 1. on fresh install system run emerge zope Actual Results: >>> Done. * checking 2530 files for package collisions existing file /usr/bin/idle is not owned by this package existing file /usr/bin/pydoc is not owned by this package existing file /usr/bin/python-config is not owned by this package existing file /usr/sbin/python-updater is not owned by this package 1000 files checked ... 2000 files checked ... * spent 0.291524887085 seconds checking for file collisions * This package is blocked because it wants to overwrite * files belonging to other packages (see messages above). * If you have no clue what this is all about report it * as a bug for this package on http://bugs.gentoo.org Expected Results: expected clean install zope install was what I needed but I do believe that any application that requires version of python under 2.4 will produce similar errors. # emerge --info Portage 2.1.1-r2 (default-linux/x86/2006.1/desktop, gcc-4.1.1, glibc-2.4-r4, 2.6.18-gentoo-r4 i686) ================================================================= System uname: 2.6.18-gentoo-r4 i686 Genuine Intel(R) CPU U1300 @ 1.06GHz Gentoo Base System version 1.12.6 Last Sync: Thu, 18 Jan 2007 17:29:01 +0000 app-admin/eselect-compiler: [Not Present] dev-java/java-config: 1.3.7, 2.0.31 dev-lang/python: 2.4.3-r4 dev-python/pycrypto: 2.0.1-r5 dev-util/ccache: [Not Present] dev-util/confcache: [Not Present] sys-apps/sandbox: 1.2.17 sys-devel/autoconf: 2.13, 2.61 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10 sys-devel/binutils: 2.16.1-r3 sys-devel/gcc-config: 1.3.14 sys-devel/libtool: 1.5.22 virtual/os-headers: 2.6.17-r2 ACCEPT_KEYWORDS="x86" AUTOCLEAN="yes" CBUILD="i686-pc-linux-gnu" CFLAGS="-O2 -fomit-frame-pointer -march=prescott -msse3 -pipe" CHOST="i686-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config" CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/gconf /etc/java-config/vms/ /etc/revdep-rebuild /etc/terminfo /etc/texmf/web2c" CXXFLAGS="-O2 -fomit-frame-pointer -march=prescott -msse3 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig buildpkg ccache collision-protect distlocks metadata-transfer sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://mirror.gentoo.gr.jp http://gentoo.gg3.net/ http://ftp.gentoo.or.kr/ http://mymirror.asiaosc.org/gentoo/ http://gentoo.channelx.biz/ http://gentoo.kems.net" LANG="en_US.UTF-8" LC_ALL="en_US.UTF-8" LINGUAS="en ru pl" MAKEOPTS="-j3" PKGDIR="/usr/portage/packages" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude='/distfiles' --exclude='/local' --exclude='/packages'" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="x86 X Xaw3d aac acpi acpi4linux aiglx alias alsa alsa_cards_ali5451 alsa_cards_als4000 alsa_cards_atiixp alsa_cards_atiixp-modem alsa_cards_bt87x alsa_cards_ca0106 alsa_cards_cmipci alsa_cards_emu10k1x alsa_cards_ens1370 alsa_cards_ens1371 alsa_cards_es1938 alsa_cards_es1968 alsa_cards_fm801 alsa_cards_hda-intel alsa_cards_intel8x0 alsa_cards_intel8x0m alsa_cards_maestro3 alsa_cards_trident alsa_cards_usb-audio alsa_cards_via82xx alsa_cards_via82xx-modem alsa_cards_ymfpci alsa_pcm_plugins_adpcm alsa_pcm_plugins_alaw alsa_pcm_plugins_asym alsa_pcm_plugins_copy alsa_pcm_plugins_dmix alsa_pcm_plugins_dshare alsa_pcm_plugins_dsnoop alsa_pcm_plugins_empty alsa_pcm_plugins_extplug alsa_pcm_plugins_file alsa_pcm_plugins_hooks alsa_pcm_plugins_iec958 alsa_pcm_plugins_ioplug alsa_pcm_plugins_ladspa alsa_pcm_plugins_lfloat alsa_pcm_plugins_linear alsa_pcm_plugins_meter alsa_pcm_plugins_mulaw alsa_pcm_plugins_multi alsa_pcm_plugins_null alsa_pcm_plugins_plug alsa_pcm_plugins_rate alsa_pcm_plugins_route alsa_pcm_plugins_share alsa_pcm_plugins_shm alsa_pcm_plugins_softvol aoss arts artworkextra audiofile authdaemond avantgo ba-completion bcmath berkdb bindist bitmap-fonts bluetooth bootsplash cairo caps cdparanoia cdr chroot cli codecs contactnotes cracklib crypt css cups cvs dbus dga divx divx4linux djvu dlloader dmi dmx dnd doc dri dv dvb dvd dvdr dvdread elibc_glibc emboss encode esd exif fam fbcon fbdev ffmpeg firefox flac fortran gamma gdbm gif gimp gimpprint glep glgd glut gpm graphviz gs gstreamer hal history i8x0 iconv icq idea ieee1394 imagekits imagemagick imap imlib2 innodb input_devices_keyboard input_devices_mouse input_devices_synaptics ipv6 irda irmc isdnlog j2ee jabber jpeg jpeg2k kde kernel_linux koffice-plugin lame lcd lcd_devices_bayrad lcd_devices_cfontz lcd_devices_cfontz633 lcd_devices_glk lcd_devices_hd44780 lcd_devices_lb216 lcd_devices_lcdm001 lcd_devices_mtxorb lcd_devices_ncurses lcd_devices_text ldap libg++ libgd linguas_en linguas_pl linguas_ru live lynxkeymap lzo lzw lzw-tiff mad mikmod mime mimencode ming mmx mmx2 mng monkey mozcalendar mozdevelop mozsha1 mozsvg mozxmlterm mp3 mpeg mplayer msn musicbrainz ncurses netbeans nls nojython nptl nptlonly nsplugin ogg opengl opens oscar pam pcmcia pcre pda pdf pdfkit perl png pnp postgresql ppds pppd python qt3 qt4 quicktime rdesktop readline real realmedia reflection reiserfs samba sametime sdl seamonkey serial session skey smartcard smime sms sndfile snmp soap speedo speex spell spl sql sse sse2 ssl subtitles subversion svg svgz tcpd tga theora threads tidy tiff transcode truetype truetype-fonts type1 type1-fonts udev unicode userland_GNU vcd video_cards_i810 video_cards_i830 video_cards_i915 video_cards_vesa video_cards_vga videos vidix vim vim-pager vim-syntax vim-with-x visualization vnc vorbis webdav webpresence wifi win32codecs winpopup x264 xanim xcomposite xext xinerama xml xml2 xmlrpc xorg xosd xpm xscreensaver xv xvid xvmc xvnc yahoo zeo zlib" Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LDFLAGS, PORTAGE_RSYNC_EXTRA_OPTS
correction - I tried to install plone - not just zope. Just to be precise.
python-2.3 is masked for removal in 30 days.