What is the recommended way to perform a stable sort on a recarray /
structured array ?
In the following example, I want to sort on name, while retaining the
existing order in the case of equal values:
values = [('a', 1), ('a', 0), ('b', 2)]
dtype = [('name', 'S10'), ('val', 'i4')]
a = np.array(values, dtype=dtype)
array([('a', 1), ('a', 0), ('b', 2)],
dtype=[('name', '|S10'), ('val', '<i4')])
np.sort(a, order='name')
array([('a', 0), ('a', 1), ('b', 2)],
dtype=[('name', '|S10'), ('val', '<i4')])
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