如何基于Python批量下载音乐

基于Python批量下载音乐可以分为以下几个步骤：

步骤一：确定下载源和下载目录

首先，要确认所需要下载的音乐源，比如 https://music.163.com/ 。然后，要确定下载的目录。

步骤二：获取音乐详情

通过分析音乐信息，可以获取歌曲ID，歌曲名称，歌手等信息。比如可以使用Python的requests和BeautifulSoup库对网页进行解析来获取音乐详情

import requests
from bs4 import BeautifulSoup

url = 'https://music.163.com/playlist?id=5211200197'
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}
res = requests.get(url, headers=headers)
soup = BeautifulSoup(res.content, 'html.parser')
music_lists = soup.find_all('ul', {'class': 'f-hide'})[0]
musics = music_lists.find_all('a')
for music in musics:
    print(music['href'], music.text)

步骤三：下载音乐文件

获取从步骤二中解析出的音乐ID和下载目录，然后构建出音乐文件的下载链接，使用Python的requests库下载音乐文件并保存到指定目录中。下面是具体的代码片段：

def download_music_music163(_music_id, _path):
    """
    :param _music_id: 歌曲id
    :param _path: 保存路径
    """
    music_src = f"https://music.163.com/song/media/outer/url?id={_music_id}.mp3"

    try:
        r = requests.get(music_src, stream=True)
        content_size = int(r.headers['content-length'])
    except Exception as e:
        print('【错误】当前音乐无法下载')
        return

    if os.path.exists(_path):
        if not check_file_already_exists(_path, content_size):
            os.remove(_path)
        else:
            return
    download_file_count = 0
    while download_file_count < 3:
        try:
            with open(_path, "wb") as f:
                for chunk in r.iter_content(1024):
                    f.write(chunk)
                    download_size = os.path.getsize(_path)
                    if download_size >= content_size:
                        break
                download_file_count += 1
        except Exception as e:
            download_file_count += 1

    if download_file_count == 3:
        print('【错误】这个音乐文件下载失败了...')
    else:
        print(_path, '下载成功')

示例说明

下面给出两个简单的示例，分别是下载流行歌曲榜（周榜）的前五首歌曲以及下载网易云音乐热门歌单中的音乐。

示例1：下载流行歌曲榜的前五首歌曲

import requests
from bs4 import BeautifulSoup
import os

def download_music_music163(_music_id, _path):
    # 与前面的代码一致
    pass

url = 'https://music.163.com/discover/toplist?id=3778678'
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}
res = requests.get(url, headers=headers)
soup = BeautifulSoup(res.content, 'html.parser')
music_lists = soup.find_all('ul', {'class': 'f-hide'})[0]
musics = music_lists.find_all('a')

top_n = 5 # 需要下载的歌曲数，可以自己设置
download_count = 0 # 已经下载的歌曲数

for music in musics:
    if download_count == top_n:
        break
    music_id = music['href'].split('=')[1]
    music_name = music.text
    download_path = os.path.join(os.getcwd(), f'{music_name}.mp3')
    download_music_music163(music_id, download_path)
    download_count += 1

示例2：下载网易云音乐热门歌单中的音乐

import requests
from bs4 import BeautifulSoup
import os

def download_music_music163(_music_id, _path):
    # 与前面的代码一致
    pass

url = 'https://music.163.com/playlist?id=2884035'
headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3'}
res = requests.get(url, headers=headers)
soup = BeautifulSoup(res.content, 'html.parser')
music_lists = soup.find_all('ul', {'class': 'f-hide'})[0]
musics = music_lists.find_all('a')

for music in musics:
    music_id = music['href'].split('=')[1]
    music_name = music.text
    download_path = os.path.join(os.getcwd(), f'{music_name}.mp3')
    download_music_music163(music_id, download_path)