Get max values based on unique values in another list - python

[killerrex]

You can obtain it in a one line:

>>> m = np.array([[126.        ,   4],...)
>>> list((x, max(m[m[:,0]==x, 1])) for x in np.unique(m[:, 0]))
[(126.0, 23.0), (129.0, 125.0), (132.0, 41.0), (142.0, 76.0)]
# Or as a numpy array
>>> np.array(list((x, max(m[m[:,0]==x, 1])) for x in np.unique(m[:, 0])))
array([[126.,  23.],
       [129., 125.],
       [132.,  41.],
       [142.,  76.]])

But it might look too much as black magic with that level of nested parenthesis and brackets... I will for sure add some comments explaining what I want to obtain.