>>> from perfumes import buy1

>>> d = {'EAU_TOILETTE': [['Rochis1',78], ['Rochis2',42]],
...   'EAU_PARFUM': [['Challenge',82]], 'EAU_COLOGNE': [['Gege',43]]}
>>> buy1(d, 'EAU_TOILETTE', 50)
True
>>> buy1(d, 'EAU_PARFUM', 70)
False