Ned Deily <nad@python.org> added the comment: It looks like the 3.6 and 3.7 full doc build has been failing since 2017-10-15. Seen in /var/log/docsbuild/python37-en.log: [...] [3] [4] [5] [6] [7] (/usr/share/texlive/texmf-dist/tex/latex/ucs/data/uni-1.def ) (/usr/share/texlive/texmf-dist/tex/latex/ucs/data/uninames.dat) (/usr/share/texlive/texmf-dist/tex/latex/ucs/data/uni-1.def) ! Package ucs Error: Unknown Unicode character 383 = U+017F, (ucs) possibly declared in uni-1.def. (ucs) Type H to see if it is available with options. See the ucs package documentation for explanation. Type H <return> for immediate help. ... l.781 Latin small letter dotless i), ‘ſ ’ (U+017F, Latin small letter lo... ? ! Emergency stop. ... l.781 Latin small letter dotless i), ‘ſ ’ (U+017F, Latin small letter lo... ! ==> Fatal error occurred, no output PDF file produced! Transcript written on howto-regex.log. Latexmk: Index file 'howto-regex.idx' was written Collected error summary (may duplicate other messages): pdflatex: Command for 'pdflatex' gave return code 256 Latexmk: Use the -f option to force complete processing, unless error was exceeding maximum runs of latex/pdflatex. Latexmk: Errors, so I did not complete making targets make[2]: *** [howto-regex.pdf] Error 12 make[2]: Leaving directory `/srv/docsbuild/python37/Doc/build/latex' make[1]: *** [dist] Error 2 make[1]: Leaving directory `/srv/docsbuild/python37/Doc' make: *** [autobuild-dev] Error 2 Julien, can you take a look please? ---------- nosy: +mdk, ned.deily title: Download of 3.7.0a2 docs giving a 404 error -> Full docs build of 3.6 and 3.7 failing since 2017-10-15 versions: +Python 3.6 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue32200> _______________________________________