Fix #7821: autodoc: TypeError is raised for overloaded C-ext function

[tk0miya]

Feature or Bugfix

• Bugfix

Purpose

• refs: TypeError: can't set attributes of built-in/extension type 'list' #7821

[NucleaPeon]

I apologize for not responding sooner, I've been busy and haven't prioritized testing your changes. I will try this and respond asap. Thank you for your effort!

[NucleaPeon]

sphinx-build -M html . _build 
Running Sphinx v3.1.1
loading pickled environment... failed
failed: build environment version not current
loading intersphinx inventory from https://docs.python.org/3.7/objects.inv...
building [mo]: targets for 0 po files that are out of date
building [html]: targets for 115 source files that are out of date
updating environment: [new config] 115 added, 0 changed, 0 removed
reading sources... [100%] todo                                                                       
looking for now-outdated files... none found
pickling environment... done
checking consistency... done
preparing documents... done
writing output... [100%] todo                                                                        
generating indices...  genindexdone
writing additional pages...  searchdone
copying images... [100%] ...
copying static files... ... done
copying extra files... done
dumping search index in English (code: en)... done
dumping object inventory... done
build succeeded.

The HTML pages are in _build/html.

@tk0miya :D
Wow thank you!