def word_count(text):
    result = []
    x = ('абвгдеёжзийклмнопрстуфхцчшщъыьэюя ')
    y = ''

    for j in text.lower():
        if j in x:
            y += j

    a = y
    c = list(str(a).split())
    array1 = []
    array2 = []
    for q in c:
        if q in array1:
            index = array1.index(q)
            array2[index] += 1
        else:
            array1.append(q)
            array2.append(1)

    for i in range(len(array1)):
        result.append((array1[i], array2[i]))

    return result


f = 'Я пришел, я ушел, я нашел'

print(word_count(f))