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python - 下载文件夹的自动管理器导致所有 chrome 下载失败

问题描述

我对编程还很陌生，并决定编写一个脚本，这将使我个人受益，同时也测试我的能力。我创建了一个脚本，它使用看门狗来跟踪我机器上的下载文件夹。我想让它尽可能地动态化，这样理论上我可以将程序提供给朋友，他们可以将所需的路径输入到随附的 .txt 文件中，并且它将继续为他们无缝工作。从某种意义上说，我的程序正在运行；如果我将图片文件从一个文件夹拖到下载文件夹中，它会自动将其发送到图片文件夹。我的问题出现在新的下载中。每当我在脚本运行时尝试在 chrome 上下载图片时，我都会收到“失败 - 下载错误”。

from watchdog.observers import Observer
from watchdog.events import FileSystemEventHandler
import os
import time
from shutil import move


paths_dict = {'dl_path': [], 'img_path': [], 'audio_path': [], 'vid_path': [],
              'doc_path': [], 'exe_path': [], 'zip_path': [], 'other_path': []}
keys = list(paths_dict.keys())

val_list = []
p_len = len(paths_dict.keys())


with open('config.txt', 'r') as paths:
    for line in paths.readlines():
        line.strip()
        split = list(line.split())
        path = split[-1]
        val_list.append(path)

    while p_len != 0:
        for k in keys:
            paths_dict[k].append(val_list[0])
            val_list.remove(val_list[0])
            p_len -= 1

image_formats = ["jpg", "png", "jpeg", "gif", "webp", "tiff", "bmp",
                 "heif", "jfif", "bat", "webp", "tiff"]
audio_formats = ["mp3", "wav", "ogg", "flac", "m4a", "aac"]
video_formats = ["mp4", "avi", "webm", "mov", 'mkv']
docs_formats = ["ai", "ait", "rtf", "txt", "doc", "docx", "pdf"]
executables = ["exe"]
zip_folders = ["zip", "tar", "gz", "7z"]


class MyHandler(FileSystemEventHandler):
    def on_any_event(self, event):

        for file in os.listdir(paths_dict['dl_path'][0]):
            extension = (file.split('.')[-1].lower())
            src = paths_dict['dl_path'][0] + '\\' + file

            if extension in image_formats:
                folder_dst = paths_dict['img_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            elif extension in video_formats:
                folder_dst = paths_dict['vid_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            elif extension in docs_formats:
                folder_dst = paths_dict['doc_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            elif extension in executables:
                folder_dst = paths_dict['exe_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            elif extension in zip_folders:
                folder_dst = paths_dict['zip_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            else:
                folder_dst = paths_dict['other_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)


event_handler = MyHandler()
observer = Observer()
observer.schedule(event_handler, paths_dict['dl_path'][0], recursive=False)
observer.start()

try:
    while True:
        time.sleep(5)
except KeyboardInterrupt:
    observer.stop()
observer.join()

这是我的 .txt 文件中包含的内容：

Path to downloads folder: C:\Users\12483\Downloads
Path of where downloaded image files are to be stored: C:\Users\12483\Pictures
Path of where downloaded audio files are to be stored: C:\Users\12483\Music
Path of where downloaded video files are to be stored: C:\Users\12483\Videos
Path of where downloaded document files are to be stored: C:\Users\12483\Documents
Path of where downloaded executable files are to be stored: C:\Users\12483\exe_files
Path of where downloaded zip files are to be stored: C:\Users\12483\zip_files
Path of where all other file types are to be stored: C:\Users\12483\misc_files

标签： pythonautomationscripting

解决方案

这实际上是一个很酷的想法......

作为一个没有太多使用python进行文件管理经验的人。我认为我无法直接有效地修改您的代码，但我有一个理论。

当浏览器开始下载文件时，它首先创建一个模板，该模板只是文件的一部分，称为 .part 文件。

https://fileinfo.com/extension/part#:~:text=A%20PART%20file%20is%20a,program%20that%20started%20the%20download。

我假设您的 python 脚本正在尝试在下载完成之前组织此文件。

所以解决方案（理论上）是修改你的脚本以等待 .part 文件成为正确的类型，也许是通过忽略带有 .part 的文件

编辑：

我需要橡皮鸭提出另一种我们想要忽略的部分文件。（.crdownload）很容易有更多。

这是一种可能的解决方案：

宣布

partial_files = ["crdownload", "part"]

然后在你的 for 循环中：

            elif extension in zip_folders:
                folder_dst = paths_dict['zip_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

            # new code
            elif extension in partial_files:
                 pass # this essentially means do nothing
            # /new code
            else:
                folder_dst = paths_dict['other_path'][0]
                new_dst = folder_dst + '\\' + file
                move(src, new_dst)

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