Neither python-matplotlib-documentation nor python-ipython-documentation can be built because their texlive unions cannot be built.
Here’s why: --8<---------------cut here---------------start------------->8--- print() on closed filehandle FILE at /gnu/store/g358kjbvcm4y0bndfb1qb1hxgiz3zm05-texlive-bin-20190410/share/texmf-dist/scripts/texlive/updmap.pl line 1145. print() on closed filehandle FILE at /gnu/store/g358kjbvcm4y0bndfb1qb1hxgiz3zm05-texlive-bin-20190410/share/texmf-dist/scripts/texlive/updmap.pl line 1145. updmap: can't write lines to >/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-dist/fonts/map/pdftex/updmap//pdftex_ndl14.map: Permission denied at /gnu/store/g358kjbvcm4y0bndfb1qb1hxgiz3zm05-texlive-bin-20190410/share/texmf-dist/scripts/texlive/updmap.pl line 533. updmap is creating new map files using the following configuration: LW35 font names : URWkb (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) prefer outlines : true (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) texhash enabled : true download standard fonts (dvips) : true (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) download standard fonts (pdftex) : true (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) jaEmbed replacement string : ipaex (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) jaVariant replacement string : <empty> (default) scEmbed replacement string : arphic (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) tcEmbed replacement string : arphic (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) koEmbed replacement string : baekmuk (/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg) create a mapfile for pxdvi : false (default) Scanning for LW35 support files [ 3 files] Scanning for MixedMap entries [ 6 files] Scanning for KanjiMap entries [ 0 files] Scanning for Map entries [ 5 files] Generating output for dvipdfmx... Generating output for ps2pk... Generating output for dvips... Generating output for pdftex... Backtrace: 4 (primitive-load "/gnu/store/l7104zwndxz76ip7i3vvhap9j2c?") In ice-9/eval.scm: 191:35 3 (_ _) 619:8 2 (_ #(#(#<directory (guile-user) 7ffff5bb9f00> "/gn?") #)) 619:8 1 (_ #(#(#(#<directory (guile-user) 7ffff5bb9f00> #) #) ?)) In guix/build/utils.scm: 654:6 0 (invoke _ . _) guix/build/utils.scm:654:6: In procedure invoke: ERROR: 1. &invoke-error: program: "updmap-sys" arguments: ("--cnffile=/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-config/web2c/updmap.cfg" "--dvipdfmxoutputdir=/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-dist/fonts/map/dvipdfmx/updmap/" "--dvipsoutputdir=/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-dist/fonts/map/dvips/updmap/" "--pdftexoutputdir=/gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-dist/fonts/map/pdftex/updmap/") exit-status: 13 term-signal: #f stop-signal: #f --8<---------------cut here---------------end--------------->8--- The file /gnu/store/lh4kwg5c3sx40a8hy24l2zz1kbrx3r91-texlive-union-51265/share/texmf-dist/fonts/map/pdftex/updmap//pdftex_ndl14.map is provided by texlive-generic-pdftex and it is a read-only file, even in the writable texlive-union. -- Ricardo