Convert multiple binary columns into crosstab

I am trying to convert the following dataset which has multiple binary variables into a crosstab.

df = pd.DataFrame({'colour_blue': [1, 0, 1], 'colour_green': [0, 1, 1],
                   'colour_red': [1, 1, 0], 'emotion_happy': [1, 1, 1],'emotion_angry': [0, 1, 1], 'emotion_sad': [0, 0, 1]})

into the following crosstab but i am having no luck

emotion	blue	green	red
happy	2	2	2
angry	1	2	1
sad	1	1	0

Answer

This is matix multiplication:

df.filter(like='emotion').T @ df.filter(like='colour')

Output:

               colour_blue  colour_green  colour_red
emotion_happy            2             2           2
emotion_angry            1             2           1
emotion_sad              1             1           0