Make py:obj default Sphinx's role

readthedocs/conf.py

@@ -42,6 +42,9 @@ extensions = [
     'custom_roles'
 ]
 
+# Change the default role so we can avoid prefixing everything with :obj:
+default_role = "py:obj"
+
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']