docstring codeblock not showing properly in spyder

Question

I am trying to create an block of example code for a python module that I have written, according to here spyder uses sphinx to render the docstring in the help window. When I try to create a code block with:

'''
Example:
---------
.. code-block :: python

:: 
    def testing():
        pass
'''

Below is what is rendered:
testing(): ... should be inside the highlighted block. I have no idea how to fix this... Any help would be greatly appreciated!

Answer 1

So it turns out (after a lot of fiddling) that an empty line under :: is required:

'''
Example:
---------
::

    def testing():
        pass
'''

Renders properly,
It seems that .. code-block :: python was also causing some problems, I am not sure why.