python - Sphinx todo box not showing -

in sphinx, can not make todo list show. here have:

.. todo:: blah blah blah 

conf.py

extensions = [     'sphinx.ext.autodoc',     'sphinx.ext.todo', ] 

i tried sphinx.ext.todo=true in conf.py, syntax errors when make html.

based on documentation have set todo_include_todos in configuration.

http://sphinx-doc.org/ext/todo.html#confval-todo_include_todos

if syntax errors maybe try (as in note example linked docs above):

.. todo::      blah     blah 

edit:

it doesn't same in site because site has applied customed css that. looked @ sphinx source code , "pyramid" theme theme mentions todo styles, can see site mentioned uses default theme. site has it's own css file. should able add own css file "doc/source/_static" directory , add conf.py include it:

def setup(app):     app.add_stylesheet('my_styles.css') 

specifically notice section of css file div.admonition-todo:

div.admonition-todo { border-top: 2px solid red; border-bottom: 2px solid red; border-left: 2px solid red; border-right: 2px solid red; background-color: #ff6347 }