Question

我不知道如何用图像发布其他推文。

我有一个要发布的推文（3）和要发布的3张图片的txt：

用图片1鸣叫1
推特2和图片2
推特3与图片3

但是我的代码对所有图像都发布了相同的推文。

my_file = open('tweets.txt','r')

file_lines = my_file.readlines()

my_file.close

filenames = ['IMG/img1.jpg','IMG/img2.jpg','IMG/img3.png']

for line in file_lines:
    for filename in filenames:
        imagePath = filename
        api.update_with_media(imagePath,line)
        filenames = filenames[1:]
        nap = randint(1,60)
        time.sleep(nap)

Answer 1

我已经简化了您的代码，以使您了解发生了什么事情：

tweets = ["tweet 1", "tweet 2", "tweet 3"]
images = ["image 1", "image 2", "image 3"]

for t in tweets:
    for i in images:
        print(t + " with " + i)
        images = images[1:]

输出：

tweet 1 with image 1
tweet 1 with image 2
tweet 1 with image 3

发生了什么事？

您有两个for循环，一个在另一个循环中，说：

对于每条推文，对于每张图片，请向我显示推文+图片，然后删除列表中的第一张图片

所以您的程序要做的是：

# first iteration of 'tweets' list
tweet = "tweet 1"
# first iteration of 'images' list
image = "image 1"
print tweet + image # ("tweet 1" and "image 1")
# remove first image from 'images' ("images 1")

# second iteration of 'images' list (notice that tweet is still "tweet 1")
image = "image 2"
print tweet + image # ("tweet 1" and "image 2")
# remove first image from 'images' ("images 2")


# third iteration of 'images' list (notice that tweet is still "tweet 1")
image = "image 3"
print tweet + image # ("tweet 1" and "image 2")
# remove first image from 'images' ("images 3")


# second iteration of 'tweets' list
tweet = "tweet 2"
# 'images' list is now empty, so nothing will be iterated (nor printed)

# third iteration of 'tweets' list
tweet = "tweet 3"
# 'images' list is now empty, so nothing will be iterated (nor printed)

那该怎么办？

假设列表的长度相同，n，则可以按从0到n-1的索引来选择项目：

tweets = ["tweet 1", "tweet 2", "tweet 3"]
images = ["image 1", "image 2", "image 3"]

for n in range(len(images)):
    print(tweets[n] + " with " + images[n])

输出：

tweet 1 with image 1
tweet 2 with image 2
tweet 3 with image 3

如果您想更进一步，Python内置了一个将 zip 压缩在一起的内置列表，其中包括2个列表：函数zip()

tweets = ["tweet 1", "tweet 2", "tweet 3"]
images = ["image 1", "image 2", "image 3"]

my_tweets = zip(tweets, images)

for tweet, image in my_tweets:
    print(tweet + " with " + image)

还有许多其他解决方案，但是这2个应该对您来说很好。如果您在代码中不再需要这些推文，请使用第一个。如果要再次使用它们，请使用zip。

由您执行最后一步以实际发布推文。祝你好运！

用tweepy发布不同的tweet及其各自的图像

1 个答案: