doc: use python as default domain

Our lua functions don't conform to C function declarations, which
generates warnings when using Sphinx 3.0.0+.

diff --git a/doc/conf.py b/doc/conf.py
index 3e49df5c829f46f68f12d27a1aaefc25a1c383f4..fcc1c99c70797ee54d460d0e9faac08650faac23 100644 (file)
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -41,7 +41,7 @@ exclude_patterns = ['_build']
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
 highlight_language = 'c'
-primary_domain = 'c'
+primary_domain = 'py'
 
 # -- Options for HTML output ---------------------------------------------------