>>> from phone import ncalls1

>>> v1 = ['934780245', '012', '618776611', '972399700', '11811',
...    '972399700', '012', '938765454', '012', '11811', '012', '11811']
>>> with open ('calls.txt', 'w') as f:
...    for e in v1:
...        a = f.write (e + '\n')
>>> ncalls1('calls.txt')
(4, 3)