python - "FFmpeg was not found, spotdl can' t continue”，即使它是使用 sudo apt-get install spotdl 安装的 + 如果从终端运行它也可以工作

Question

@bot.command()
async def getsong(ctx, *, songname):
    "get song in mp3 from song name"
    os.popen(f'spotdl {songname} -f "/home/pi/discordbot/output/{songname}.mp3"')
    await ctx.send(file=discord.File(fr'/home/pi/discordbot/output/{songname}.mp3'))

使用 sudo-apt get 安装的 ffmpeg。如果从终端运行则有效
怎么修？
我自己弄清楚了。
工作代码，如果它有利于任何人:

@bot.command()
async def getsong(ctx, *, songname):
    "get song in mp3 from song name"
    subprocess.Popen(f'spotdl -o "/home/pi/discordbot/output" --ffmpeg "/usr/bin/ffmpeg" {songname} --path-template "{songname}.mp3"', shell=True)
    await ctx.send(file=discord.File(fr'/home/pi/discordbot/output/{songname}.mp3'))

Answer 1

尝试使用 subprocess.check_output来自子流程，例如

@bot.command()
async def getsong(ctx, *, songname):
    # get song in mp3 from song name :D
    subprocess.check_output(f'spotdl {songname} -f "/home/pi/discordbot/output/{songname}.mp3"', shell=True)
    await ctx.send(file=discord.File(f'/home/pi/discordbot/output/{songname}.mp3'))