The Python Apprentice

Setting up a main function with command line argument

Let's refine our word fetching module a little further. First, we'll perform a small refactoring and separate the word retrieval and collection on the one hand from the word printing on the other:

from urllib.request import urlopen# This fetches the words and returns them as a list.def fetch_words():    with urlopen('http://sixty-north.com/c/t.txt') as story:        story_words = []        for line in story:            line_words = line.decode('utf-8').split()            for word in line_words:                story_words.append(word)    return story_words# This prints a list of wordsdef print_words(story_words):    for word in story_words:        print(word)if __name__ == '__main__':    words = fetch_words()    print_words(words)

We do this because it separates ...