histogram

with open('./words.txt', 'r') as words_file:
    words = words_file.read().split(" ")
    unique_words = set(words)
    count = 0
    word_dict = {}
    total = 0

    for word in unique_words:
        if len(word) == 0:
            continue

        w_count = words.count(word)
        word_dict[word] = w_count
        total += w_count
        count += 1

    print('Number of unique words: %s' % count)

    for k in word_dict.keys():
        print('%s: %s occurances, %s percent of words' % (k, word_dict[k], round(word_dict[k] / total * 10000) / 100))