问如何在Python/Selenium中缩进一些比较复杂的代码块？

EN

articles = driver.find_elements_by_tag_name('article')
for article in articles:
    ActionChains(driver).move_to_element(article).perform()
    if article.find_element_by_tag_name('a').text == "sold out":
         print("sold out")
    else:
        print("available")
        shirts = driver.find_elements_by_xpath("""//*[@id='container']/article/div/h1/a""")
        colors = driver.find_elements_by_xpath("""//*[@id='container']/article/div/p/a""")
        for shirt, color in zip(shirts, colors):
            shirt_text = shirt.text
            color_text = color.text
            print shirt_text, color_text
            link = article.find_element_by_xpath('div/a').get_attribute('href')
            print(link)