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我有个问题。我正在尝试学习如何使用 Selenium 对机器人进行编码。一切正常，但我无法将我从 Instagram 获得的关注者列表保存为 txt 文件。提前感谢您的帮助。

def getFollowing(self):
        self.browser.get(f"https://www.instagram.com/{self.username}")
        time.sleep(3)
        self.browser.find_element_by_xpath("//*[@id='react-root']/section/main/div/header/section/ul/li[3]/a").click()
        time.sleep(3)

        dialog = self.browser.find_element_by_css_selector("div[role=dialog] ul")
        followingCount = len(dialog.find_elements_by_css_selector("li"))

        print(f"First count: {followingCount}")

        action = webdriver.ActionChains(self.browser)

        while True:
            dialog.click()
            action.key_down(Keys.SPACE).key_up(Keys.SPACE).perform()

            newCount = len(dialog.find_elements_by_css_selector("li"))

            if followingCount != newCount:
                followingCount = newCount
                print(f"New count: {followingCount}")
                time.sleep(3)
            else:
                break

            following = dialog.find_elements_by_css_selector("li")

            followingList =[]
            i = 0
            for user in following:
                link = user.find_element_by_css_selector("a").get_attribute("href")
                followingList.append(link)
                i += 1
                if i == followingCount+1:
                    break

            with open("following.txt", "w", encoding="UTF-8") as file:
                for item in followingList:
                    file.write(item + "\n")


elif choice == 2:
        instagram.getFollowing()
        following = open("following.txt", "r")
        for i in following:
            print(i)

输入您的 COISE：2

c:\Users\murat\Desktop\Çalışmalarım\Programlama\Exercises\InstagramBOT\main.py:72: DeprecationWarning: find_element_by_* commands are deprecated. Please use find_element() instead
  self.browser.find_element_by_xpath("//*[@id='react-root']/section/main/div/header/section/ul/li[3]/a").click()
c:\Users\murat\Desktop\Çalışmalarım\Programlama\Exercises\InstagramBOT\main.py:75: DeprecationWarning: find_element_by_* commands are deprecated. Please use find_element() instead
  dialog = self.browser.find_element_by_css_selector("div[role=dialog] ul")
C:\Users\murat\AppData\Local\Programs\Python\Python310\lib\site-packages\selenium\webdriver\remote\webelement.py:501: UserWarning: find_elements_by_* commands are deprecated. Please use find_elements() instead
  warnings.warn("find_elements_by_* commands are deprecated. Please use find_elements() instead")
First count: 12
Traceback (most recent call last):
  File "c:\Users\murat\Desktop\Çalışmalarım\Programlama\Exercises\InstagramBOT\main.py", line 162, in <module>
    following = open("following.txt", "r")
FileNotFoundError: [Errno 2] No such file or directory: 'following.txt'
4

3 回答 3

1

2 件事

  1. 你得到

    DeprecationWarning: find_element_by_* commands are deprecated

为了解决这个问题，你应该改变所有

find_element_by_*

命令

find_element(By.XPATH, "XPATH")

或 By.CSS_SELECTOR、By.ID 等。取决于您的选择器。

  1. 没有这样的文件

    FileNotFoundError: [Errno 2] No such file or directory: 'following.txt

你正在使用这行代码

with open("following.txt", "w", encoding="UTF-8") as file:

你在给

following.txt

既然不是full file path，Python 会从你运行程序的地方查看当前项目。

可能它不存在于当前工作目录中。

请确保它存在，如果不在当前工作目录中，那么您应该提供完整的文件路径。

在 Windows 系统上，它会是这样的：

D:/FolderName/following.txt

这只是一个例子。

于 2021-11-21T09:55:33.477 回答
0

首先检查文件following.txt是否存在于工作目录中。

    if followingCount != newCount:
        followingCount = newCount
        print(f"New count: {followingCount}")
        time.sleep(3)
    else:
        break  # <-- this line breaks the loop before writing the file.

PS：尝试在另一个新的 python 脚本中读取和写入文件。如果它有效，则意味着在您的主代码中，文件位置不同。

于 2021-11-21T10:03:45.183 回答
0

当您使用时，您的程序中有一个小问题和一个主要问题，如下所示：

此错误消息...

FileNotFoundError: [Errno 2] No such file or directory: 'following.txt'

...意味着您的程序无法在当前工作目录中找到该文件，即： following.txt

c:\Users\murat\Desktop\Çalışmalarım\Programlama\Exercises\InstagramBOT

解决方案

要解决此错误，您可以采用以下两种方法中的任何一种：

  • 确保所需的文本文件following.txt位于c:\Users\murat\Desktop\Çalışmalarım\Programlama\Exercises\InstagramBOT子目录中。

  • 您还可以传递所需文本文件的绝对路径，following.txt如下所示：

    with open("c:/absolute_file_location/following.txt", "w", encoding="UTF-8") as file:
于 2021-11-21T13:00:10.407 回答