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import numpy as np
nom = ['Mcgregor', 'Nurma', 'Hari']
prenom = ['Alice', 'Abib', 'Badr']
niveau = [3, 1, 2]
moy = [12, 17, 15]
donnees = np.zeros(3, dtype={'names':('nom', 'prenom', 'niveau', 'moy'), 'formats':('U10', 'U10','i4', 'f8')})
donnees
array([('', '', 0, 0.), ('', '', 0, 0.), ('', '', 0, 0.)],
      dtype=[('nom', '<U10'), ('prenom', '<U10'), ('niveau', '<i4'), ('moy', '<f8')])
donnees['nom'] = nom
donnees['prenom'] = prenom
donnees['niveau'] = niveau
donnees['moy'] = moy