It sounds like the warning for the Libre+Franklin import is ignored by the testsuite. But in any case, it is mentioned at https://github.com/sqlalchemy/sqlalchemy/issues/5727, and sounds like the issue is that an external resource is attempting to be read but blocked by the proxy.
** Bug watch added: github.com/sqlalchemy/sqlalchemy/issues #5727 https://github.com/sqlalchemy/sqlalchemy/issues/5727 ** Bug watch added: Python Roundup #36381 http://bugs.python.org/issue36381 ** Description changed: https://launchpad.net/ubuntu/+archive/test- rebuild-20210805-impish/+build/21915579/+files/buildlog_ubuntu-impish- amd64.postfix_3.5.6-1build1_BUILDING.txt.gz - build succeeded, 10 warnings. The HTML pages are in ../../debian/python-sqlalchemy-doc/usr/share/doc/python-sqlalchemy-doc/html. Exception ignored in: <_io.FileIO name='/usr/lib/python3/dist-packages/zzzeeksphinx/themes/zzzeeksphinx/static/docs.scss' mode='rb' closefd=True> Traceback (most recent call last): - File "/usr/lib/python3/dist-packages/zzzeeksphinx/scss.py", line 62, in generate_stylesheet - open(os.path.join(static_path, "%s.scss" % name)).read() + File "/usr/lib/python3/dist-packages/zzzeeksphinx/scss.py", line 62, in generate_stylesheet + open(os.path.join(static_path, "%s.scss" % name)).read() ResourceWarning: unclosed file <_io.TextIOWrapper name='/usr/lib/python3/dist-packages/zzzeeksphinx/themes/zzzeeksphinx/static/docs.scss' mode='r' encoding='UTF-8'> Extension error (zzzeeksphinx.scss): Handler <function generate_stylesheet at 0x7f5a509fbe50> for event 'build-finished' threw an exception (exception: Error parsing block: - @import url(//fonts.googleapis.com/css?family=Oxygen|Libre+Franklin:400,700); - DeprecationWarning: PY_SSIZE_T_CLEAN will be required for '#' formats + @import url(//fonts.googleapis.com/css?family=Oxygen|Libre+Franklin:400,700); + + Traceback: + File "/usr/lib/python3/dist-packages/scss/compiler.py", line 349, in manage_children + self._manage_children_impl(rule, scope) + File "/usr/lib/python3/dist-packages/scss/compiler.py", line 359, in _manage_children_impl + for c_lineno, c_property, c_codestr in locate_blocks(rule.unparsed_contents): + DeprecationWarning: PY_SSIZE_T_CLEAN will be required for '#' formats -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939346 Title: FTBFS 3.5.6-1build1 in build-docs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/sqlalchemy/+bug/1939346/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs