[docs] [issue31423] Error while building PDF documentation

[Julien Palard]

New submission from Julien Palard:

Since the docsbuild-scripts [1] upgraded its sphinx-build [2], we're having this error when building the docs:

    ! Undefined control sequence.
    \py at authoraddress -> \strong

    {Python Software Foundation}\\ Email: \email {d...
    l.58 \sphinxtableofcontents
                           
    !  ==> Fatal error occurred, no output PDF file produced!


it looks like to be from conf.py line 97 [3]:

conf.py-95-# Additional stuff for the LaTeX preamble.
conf.py-96-latex_elements['preamble'] = r'''
conf.py:97:\authoraddress{
conf.py-98-  \strong{Python Software Foundation}\\
conf.py-99-  Email: \email{docs at python.org}
conf.py-100-}


 [1]: https://github.com/python/docsbuild-scripts 
 [2]: we merged https://github.com/python/docsbuild-scripts/pull/12
 [3]: https://github.com/python/cpython/blob/909a6f626ff343937cd3f06fda996870e7890724/Doc/conf.py#L97

----------
assignee: docs at python
components: Documentation
messages: 301895
nosy: docs at python, mdk
priority: normal
severity: normal
status: open
title: Error while building PDF documentation
versions: Python 2.7, Python 3.6, Python 3.7

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31423>
_______________________________________