Python-сообщество

def read_sequence(end=0):
    sequence = []
    while True:
        el = raw_input('enter integer or {}: '.format(end))
        try:
            i = int(el)
            if i == end:
                break
            sequence.append(i)
        except ValueError:
            print 'Error: Input must be integer!'
    return sequence
print sum(filter(lambda a: a % 7 == 0,
                 filter(lambda a: (a >= 6) and (a <= 80),
                        read_sequence())))

end, _sum = 0, 0 # признак окончания ввода, сумма
dig = raw_input('data input: ').split() # ввод последовательности
for i in dig:   # перебор
    i = int(i)
    if i == end: break
    if 6 <= i <= 80 and i % 7 == 0: _sum += i
print 'data output: ', _sum

dig = map(int,raw_input('data input: ').split()) # ввод последовательности
print 'number of cool values: ',len([i for i in dig if 6 <= i <= 80 and i % 7 == 0])

i for i in dig if 6 <= i <= 80 and i % 7 == 0

sum(1 for i in dig if 6 <= i <= 80 and i % 7 == 0)