python - 将批处理命令转换为 python

Question

我正在尝试将 .bat 文件转换为 python，几乎一切正常，只有压缩部分不起作用，我指出了标志和“rar.exe”的路径，但它不起作用全部在python版本中。我需要更正哪些内容才能具有与“.bat”版本相同的行为？

谢谢

batVersion.bat

@echo off

setlocal EnableDelayedExpansion
set "FolderBaseName=myFolder"

set "DropBoxFolder=D:\Tests\3.asc\MyDropBox"
set "BaseOutputFolder=D:\Tests\3.asc\TEMP"

for %%I in (*.png) do (

    set "slaveName=%%~nI"
    set "slaveName=!slaveName:~6!
    set "OutputFolder=%BaseOutputFolder%_!slaveName!"

    echo !slaveName!   
    md "!OutputFolder!" 2>nul

    for %%J in (*.mp4*) do (      
        ffmpeg -i "%%~fJ" -i "%%~fI" -filter_complex overlay "!OutputFolder!\%%~nJ.mp4"
    )


    "C:\Program Files\WinRAR\rar.exe" a -cfg- -ep1 -inul -m5 "%DropBoxFolder%\%FolderBaseName%_!slaveName!" "!slaveName:~6!\*"
    rd /S /Q "!OutputFolder!"
)
pause

python版本.py

def processVideos():

    FolderBaseName   = "myFolder"
    DropBoxFolder    = "D:\\Tests\\3.asc\\MyDropBox"
    BaseOutputFolder = "D:\\Tests\\3.asc\\TEMP"

    for img in os.listdir("D:\\Tests\\3.asc"):
        if img.endswith(".png"):

            slaveName = img.split('.')[0]

            OutputFolder = BaseOutputFolder+'_'+slaveName + '\\'

            #create tmp folder
            if not os.path.exists(OutputFolder): os.makedirs(OutputFolder)

            for video in os.listdir("D:\\Tests\\3.asc"):
                if video.endswith(".mp4"):

                    command = [ 'ffmpeg',
                                '-i', "D:\\Tests\\3.asc\\"+video,
                                '-i', "D:\\Tests\\3.asc\\"+img,
                                '-filter_complex', 'overlay',
                                OutputFolder+'\\'+str(video)]

                    pipe = subprocess.Popen(command, stdout = subprocess.PIPE) #, bufsize=10**8


            commandRar = [ 'C:\\Program Files\\WinRAR\\rar.exe',
                            'a',
                            '-cfg-',
                            '-ep1',
                            '-inul',
                            '-m5',
                            DropBoxFolder+'\\'+FolderBaseName+'_'+slaveName]

            # this doesnt work, and also I only want it to happen after the conversion above has finished
            pipeRar = subprocess.Popen(commandRar, stdout = subprocess.PIPE)    

processVideos()

Answer 1

您需要使用 communicate您正在创建的 Popen 对象的方法。

blah = Popen(...)
blah.communicate()

这也会阻塞直到它完成，之后你可以开始第二个命令。