如何在 python 中使用生成器生成文本？

Question

我想使用 python 生成器制作文本

我是初学者，最近开始学习 python，我在网上搜索但没有找到任何有用的东西

def make_text(n):
    b = ["hello"]
    yield n+b
n = ['how are you', 'what is your name']
for x in range(2):
    title = driver.find_element_by_xpath('//*[@id="title"]')
    title.send_keys(make_text(n))

我想得到：

hello how are you 
hello what's your name? 

但我收到此错误：

object of type 'generator' has no len() 

提前致谢

Answer 1

这是您可以执行的操作的基本示例。 您需要迭代yield ed 对象，

def make_text(word):
    greetings = ['how are you', 'what is your name']
    for greet in greetings:
        yield "{} {}".format(word, greet)

def say():
    texts = ['hello',]
    for text in texts:
        x = make_text(text)
        for n in x:
            print(n)
            title = driver.find_element_by_xpath('//*[@id="title"]')
            title.send_keys(n)


say()

输出，

hello how are you
hello what is your name

Answer 2

您的代码更适合初学者的版本是：

def make_text(n):
    b = ["hello"]
    return n + b

words = ['how are you', 'what is your name']

for word in words:
    text = make_text(word)
    print(text)