The Python2 version of matplotlib 2.1.0 requires dev-python/backports-functools-lru-cache, which is currently only pulled in via USE=test. Installing the package without the test flag results in a runtime error when importing matplotlib: Python 2.7.14 (default, Nov 3 2017, 12:00:38) [GCC 6.4.0] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import matplotlib Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/usr/lib64/python2.7/site-packages/matplotlib/__init__.py", line 128, in <module> from matplotlib.rcsetup import defaultParams, validate_backend, cycler File "/usr/lib64/python2.7/site-packages/matplotlib/rcsetup.py", line 29, in <module> from matplotlib.fontconfig_pattern import parse_fontconfig_pattern File "/usr/lib64/python2.7/site-packages/matplotlib/fontconfig_pattern.py", line 32, in <module> from backports.functools_lru_cache import lru_cache ImportError: No module named functools_lru_cache ------------------------- Portage 2.3.13 (python 2.7.14-final-0, !../../var/lib/layman/binaryden/profiles/binaryden/desktop/cinnamon, gcc-6.4.0, glibc-2.25-r9, 4.13.12-gentoo x86_64) ================================================================= System uname: Linux-4.13.12-gentoo-x86_64-Intel-R-_Core-TM-_i7-6700K_CPU_@_4.00GHz-with-gentoo-2.4.1 KiB Mem: 32884928 total, 11296080 free KiB Swap: 4194300 total, 4194300 free Timestamp of repository gentoo: Wed, 15 Nov 2017 11:30:01 +0000 Head commit of repository gentoo: 5f40bc2861de033d873c6793e535117ab06c0c2c sh bash 4.3_p48-r1 ld GNU ld (Gentoo 2.28.1 p1.0) 2.28.1 app-shells/bash: 4.3_p48-r1::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.3::gentoo dev-lang/python: 2.7.14::gentoo, 3.4.5::gentoo dev-util/cmake: 3.9.6::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.4.1-r2::gentoo sys-apps/openrc: 0.34.7::gentoo sys-apps/sandbox: 2.10-r4::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69::gentoo sys-devel/automake: 1.11.6-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.28.1::gentoo sys-devel/gcc: 6.4.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r3::gentoo sys-devel/make: 4.2.1::gentoo sys-kernel/linux-headers: 4.4::gentoo (virtual/os-headers) sys-libs/glibc: 2.25-r9::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.gentoo.org/gentoo-portage priority: -1000 sync-rsync-extra-opts: binaryden location: /var/lib/layman/binaryden masters: gentoo priority: 50 deadbeef-overlay location: /var/lib/layman/deadbeef-overlay masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2 -pipe -march=native" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2 -pipe -march=native" DISTDIR="/usr/portage/distfiles" EMERGE_DEFAULT_OPTS="--quiet-build=y --read-news=y" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs clean-logs config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="http://distfiles.gentoo.org" LANG="en_US.utf8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j9" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/tmp" USE="X a52 aac acl acpi alsa amd64 apng berkdb branding bzip2 cairo cdda cinnamon cli colord cracklib crypt cups cxx dbus dri dts dvd dvdr emboss encode exif fam firefox flac fontconfig fortran gdbm gif glamor gnome-keyring gpm gstreamer gtk gtk3 hidpi iconv icu introspection ipv6 jpeg kdrive lcms ldap libnotify mad mng modules mp3 mp4 mpeg multilib ncurses nls ogg opengl openmp pam pango pcre pdf png policykit ppds pulseaudio qt3support qt5 readline sdl seccomp session ssl startup-notification svg systemd tcpd tiff truetype udev udisks unicode upower usb vim-syntax vorbis wxwidgets x264 xattr xcb xinerama xml xv xvid xvmc zlib" ABI_X86="64" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd 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" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" CURL_SSL="openssl" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="evdev roccat_konextd" KERNEL="linux" L10N="en-us en" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en_US en" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-6" POSTGRES_TARGETS="postgres9_5" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="python2_7 python3_4" RUBY_TARGETS="ruby22" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau intel" 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: CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2e9006187fe0eff83e27dec73eb9000f2e2e119e commit 2e9006187fe0eff83e27dec73eb9000f2e2e119e Author: Andrey Grozin <grozin@gentoo.org> AuthorDate: 2017-11-21 12:13:28 +0000 Commit: Andrey Grozin <grozin@gentoo.org> CommitDate: 2017-11-21 12:13:28 +0000 dev-python/matplotlib: dependency on backports-functools-lru-cache fixed With python_targets_python2_7, backports-functools-lru-cache is needed at runtime. It is also needed at build time with USE=test, or with USE=doc if python2_ is the only element in PYTHON_TARGETS. Therefore, Ive added it to COMMON_DEPEND. Closes: https://bugs.gentoo.org/637588 Package-Manager: Portage-2.3.14, Repoman-2.3.6 dev-python/matplotlib/matplotlib-2.1.0-r1.ebuild | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)