Question

有没有办法在pytube中添加进度条？我不知道如何使用以下方法：

pytube.Stream().on_progress(chunk, file_handler, bytes_remaining)

我的代码：

from pytube import YouTube
# from pytube import Stream
from general import append_to_file


def downloader(video_link, down_dir=None):
    try:
        tube = YouTube(video_link)
        title = tube.title
        print("Now downloading,  " + str(title))
        video = tube.streams.filter(progressive=True, file_extension='mp4').first()
        print('FileSize : ' + str(round(video.filesize/(1024*1024))) + 'MB')
        # print(tube.streams.filter(progressive=True, file_extension='mp4').first())
        # Stream(video).on_progress()
        if down_dir is not None:
            video.download(down_dir)
        else:
            video.download()
        print("Download complete, " + str(title))
        caption = tube.captions.get_by_language_code('en')
        if caption is not None:
            subtitle = caption.generate_srt_captions()
            open(title + '.srt', 'w').write(subtitle)
    except Exception as e:
        print("ErrorDownloadVideo  |  " + str(video_link))
        append_to_file('debug', format(e))
    # FILESIZE print(tube.streams.filter(progressive=True, file_extension='mp4').first().filesize/(1024*1024))

Answer 1

在Youtube类中调用您的进度函数

yt = YouTube(video_link, on_progress_callback=progress_func)

这是您的进度功能

def progress_function(self,stream, chunk,file_handle, bytes_remaining):

    size = video.filesize
    p = 0
    while p <= 100:
        progress = p
        print str(p)+'%'
        p = percent(bytes_remaining, size)

这会计算转换文件大小和剩余字节数的百分比

def percent(self, tem, total):
        perc = (float(tem) / float(total)) * float(100)
        return perc

Answer 2

我知道已经回答了这个问题，但是我碰到了这个问题，对我来说进度是从100倒数到0。由于我想用百分比值填充进度条，所以我不能使用它。

所以我想出了这个解决方案：

def progress_func(self, stream, chunk, file_handle,bytes_remaining):
  size = self.video.filesize
  progress = (float(abs(bytes_remaining-size)/size))*float(100)
  self.loadbar.setValue(progress)

负载栏是我从PyQt5开始的进度栏。希望这对某人有帮助。

Answer 3

较短的选项：

yt = YouTube(video_link, on_progress_callback=progress_function)

video = yt.streams.first() # or whatever 

# Prints something like "15.555% done..." 
def progress_function(stream, chunk, file_handle, bytes_remaining):
    print(round((1-bytes_remaining/video.filesize)*100, 3), '% done...')

当然，您可以将进度输出限制为例如10％，20％，30％...的值-只需将print语句括在必需的if子句中即可。

Answer 4

回调函数采用三个参数，而不是四个参数：chunk，bytes_remaining和{{1}}。

Answer 5

您也可以这样做，而无需编写自己的函数。

代码：

from pytube import YouTube
from pytube.cli import on_progress #this module contains the built in progress bar. 
link=input('enter url:')
yt=YouTube(link,on_progress_callback=on_progress)
videos=yt.streams.first()
videos.download()
print("(:")

Answer 6

from pytube import Playlist
from pytube import YouTube

previousprogress = 0
def on_progress(stream, chunk, bytes_remaining):
    global previousprogress
    total_size = stream.filesize
    bytes_downloaded = total_size - bytes_remaining 

    liveprogress = (int)(bytes_downloaded / total_size * 100)
    if liveprogress > previousprogress:
        previousprogress = liveprogress
        print(liveprogress)


yt = YouTube('https://www.youtube.com/watch?v=4zqKJBxRyuo&ab_channel=SleepEasyRelax-KeithSmith')
yt.register_on_progress_callback(on_progress)
yt.streams.filter(only_audio=True).first().download()

Answer 7

您可以像这样添加进度条。忽略愚蠢的类型错误（如果有）

pytube.request.default_range_size = 1048576    # this is for chunck size, 1MB size



yt = YouTube(url)
video = yt.streams.first()

video.download(<whatever>)


def progress_callback(stream, chunk, bytes_remaining):
    size = video.filesize
    progress = int(((size - bytes_remaining) / size) * 100)
    print(progress)
    # do call progress bar from GUI here


def complete_callback(stream, file_handle):
    print("downloading finished")
    # progress bar stop call from GUI here


yt.register_on_progress_callback(progress_callback)
yt.register_on_complete_callback(complete_callback)

Answer 8

这很有趣！

我们可以用如下代码模拟linux的下载动画：

// eslint-disable-next-line

输出看起来像：

↳ |██████████████████████████████████----------- -----| 68.4%

玩得开心！！

如何添加进度条？

8 个答案: