>>> from gimnas import dic_material

>>> d = dic_material('gimnas-1.txt', ',')
>>> d == {'cinta': ['12', '15', '9'], 'bicicleta': ['8', '10', '6'],
...       'peses': ['20', '18', '22'], 'el·líptica': ['5', '7', '4']}
True

>>> s2 = (
... 'rem\tpress_banca\tpremsa_cames\tstepper\n'
... '12\t20\t18\t5\n'
... '15\t22\t17\t6\n'
... '9\t19\t20\t4\n'
... '14\t21\t16\t7\n'
... '11\t18\t19\t5\n'
... '13\t23\t21\t6\n'
... '16\t20\t22\t8\n'
... '10\t17\t18\t4\n'
... '12\t19\t20\t5\n'
... '15\t21\t23\t7\n'
... '9\t18\t17\t4\n'
... '14\t22\t21\t6\n'
... )
>>> with open('gimnas-2.txt','w') as f:
...   n = f.write(s2)

>>> d2 = dic_material('gimnas-2.txt', '\t')
>>> d2 == {
...     'rem': ['12','15','9','14','11','13','16','10','12','15','9','14'],
...     'press_banca': ['20','22','19','21','18','23','20','17','19','21','18','22'],
...     'premsa_cames': ['18','17','20','16','19','21','22','18','20','23','17','21'],
...     'stepper': ['5','6','4','7','5','6','8','4','5','7','4','6']
... }
True