Why does Cython keep making python objects instead of c? [duplicate]

Question

I am trying to learn cython, where I compile with annotate=True.

Says in The basic manual:
If a line is white, it means that the code generated doesn’t interact with Python, so will run as fast as normal C code. The darker the yellow, the more Python interaction there is in that line

Then I wrote this code following (as much as I understood) numpy in cython basic manual instructions:

+14: cdef entropy(counts):
 15:     '''
 16:     INPUT: pandas table with counts as obsN
 17:     OUTPUT: general entropy
 18:     '''
+19:     cdef int l = counts.shape[0]
+20:     cdef np.ndarray probs = np.zeros(l, dtype=np.float)
+21:     cdef int totals = np.sum(counts)
+22:     probs = counts/totals
+23:     cdef np.ndarray plogp = np.zeros(l, dtype=np.float)
+24:     plogp = ( probs.T * (np.log(probs)) ).T
+25:     cdef float d = np.exp(-1 * np.sum(plogp))
+26:     cdef float relative_d = d / probs.shape[0]
 27: 
+28:     return {'d':d,
+29:             'relative_d':relative_d
 30:             }

Where all the "+" at the beginning of the line are yellow in the cython.debug.output.html file.

What am I doing very wrong? How can I make at least part of this function run at c speed? The function returns a python dictionary, hence I think that I can't returned any c data type. I might be wrong here to.

Thank you for the help!