要学一些东西，但腾讯课堂不支持自定义变速，播放时有水印，且有些老师的课一遍不够看，于是这个脚本诞生了。
时间比较紧张，只会不定时修复重大bug。多线程下载之类的功能更新短期内不会有，如果你想一起完善这个脚本，欢迎pr
2020.5.22测试可用
很简单，三部完成
下载代码, 配置环境为python3 + edge 89
> pip install -r requirements.txt
> python qcourse.py
cookies.json再重新运行脚本mp4格式(ffmpeg)Traceback (most recent call last):
File "qcourse.py", line 140, in
(qcourse-venv) PS D:\qcourse_scripts-main> python qcourse.py 0. 下载单个视频
输入需要的功能：1
请输入课程cid:3138704
Traceback (most recent call last):
File "D:\qcourse_scripts-main\qcourse.py", line 140, in
Traceback (most recent call last):
File "qcourse.py", line 162, in
报这个错误，这是什么原因呀 拉取的最新代码的
https://ke.qq.com/cgi-bin/course/basic_info?cid= 上面这个接口要带防盗链，不然查询不到参数 错误的返回：{"msg":"refer错误","type":1,"retcode":100101}
建议解决办法：
在utils.py文件里，的get_course_from_api函数中，添加headers参数
如：
'''
headers = {
'referer': 'https://ke.qq.com/user/index/index.html',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) '
'Chrome/80.0.3987.132 Safari/537.36 '
}
'''
即可
完整函数： ''' python def get_course_from_api(cid=None): headers = { 'referer': 'https://ke.qq.com/user/index/index.html', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) ' 'Chrome/80.0.3987.132 Safari/537.36 ' } # 获取课程信息 if cid is None: print('请输入cid！') url = 'https://ke.qq.com/cgi-bin/course/basic_info?cid=' + str(cid) response = requests.get(url=url, headers=headers).json() name = response.get('result').get('course_detail').get('name').replace('/', '／').replace('\', '＼') with open(name + '.json', 'w') as f: f.write(json.dumps(response)) return name '''
Traceback (most recent call last):
File "D:\study\3\qcourse_scripts\qcourse.py", line 162, in
$ python qcourse.py
0. 下载单个视频
1. 下载课程指定章节
2. 下载课程全部视频
输入需要的功能：2
请输入课程cid:310478
Traceback (most recent call last):
File "D:\Downloads\qcourse_scripts\qcourse.py", line 140, in <module>
main()
File "D:\Downloads\qcourse_scripts\qcourse.py", line 121, in main
course_name = get_course_from_api(cid)
File "D:\Downloads\qcourse_scripts\utils.py", line 20, in get_course_from_api
name = response.get('result').get('course_detail').get('name').replace('/', '／').replace('\\', '＼')
AttributeError: 'NoneType' object has no attribute 'get'
Connected to pydev debugger (build 212.5284.44) 0. 下载单个视频
输入需要的功能：python-BaseException Traceback (most recent call last): File "C:\Users\Administrator\PycharmProjects\qcourse_scripts\venv\lib\site-packages\playwright_impl_browser_type.py", line 86, in launch return from_channel(await self._channel.send("launch", params)) File "C:\Users\Administrator\PycharmProjects\qcourse_scripts\venv\lib\site-packages\playwright_impl_connection.py", line 36, in send return await self.inner_send(method, params, False) File "C:\Users\Administrator\PycharmProjects\qcourse_scripts\venv\lib\site-packages\playwright_impl_connection.py", line 54, in inner_send result = next(iter(done)).result() playwright._impl._api_types.Error: Chromium distribution 'msedge' is not found at C:\Users\Administrator\AppData\Local\Microsoft\Edge\Application\msedge.exe Run "npx playwright install msedge"
During handling of the above exception, another exception occurred:
"chromium" browser was not found. Please complete Playwright installation via running
"python -m playwright install"
================================================================================
Process finished with exit code 1
尝试下载整套课程时
utils.py49 - 55
def get_chapters_from_file(filename, term_index):
# 从json文件内获取章节信息
with open(filename, 'r') as f:
course_info = json.loads(f.read())
chapters = course_info.get('result').get('course_detail').get('terms')[term_index].get('chapter_info')[0]\
.get('sub_info')
return chapters
手动修改term_index为目标学期时, 出现下面的错误
前面的结果步骤ok，但是到了这一步：playwright install msedge 出现了如下的错误提示：
无法加载文件 D:\Users\Desktop\qcourse_scripts-main\qcourse-venv\Lib\site-packag es\playwright\driver\package\bin\reinstall_msedge_stable_win.ps1，因为在此系统 中禁止执行脚本。有关详细信息，请参阅 "get-help about_signing"。 所在位置 行:1 字符: 131
Failed to install browsers Error: Failed to install msedge
如果不理会它，继续进行最后一步：python qcourse.py， 得到这样的日志：
输入需要的功能：0 Traceback (most recent call last): File "d:\Users\Desktop\qcourse_scripts-main\qcourse-venv\lib\site-packages\pla ywright_impl_browser_type.py", line 86, in launch return from_channel(await self._channel.send("launch", params)) File "d:\Users\Desktop\qcourse_scripts-main\qcourse-venv\lib\site-packages\pla ywright_impl_connection.py", line 36, in send return await self.inner_send(method, params, False) File "d:\Users\Desktop\qcourse_scripts-main\qcourse-venv\lib\site-packages\pla ywright_impl_connection.py", line 54, in inner_send result = next(iter(done)).result() playwright._impl._api_types.Error: Chromium distribution 'msedge' is not found a t C:\Users\Administrator\AppData\Local\Microsoft\Edge\Application\msedge.exe Run "npx playwright install msedge"
During handling of the above exception, another exception occurred:
"chromium" browser was not found. Please complete Playwright installation via running
"python -m playwright install"
================================================================================
不知道出了什么问题……麻烦大佬给看看，谢谢♪(･ω･)ﾉ
下载全部课程视频时报错
请输入要下载的课程序号(回车结束)：1
获取课程信息成功,准备下载！
Traceback (most recent call last):
File "qcourse.py", line 154, in <module>
main()
File "qcourse.py", line 131, in main
logger.info('cid: '+cid)
TypeError: can only concatenate str (not "int") to str
qcourse-venv) F:\tx\qcourse_scripts-main>playwright install msedge Failed to install browsers Error: ╔═════════════════════════════════════════════════════════════════╗ ║ ATTENTION: "msedge" is already installed on the system! ║ ║ ║ ║ "msedge" installation is not hermetic; installing newer version ║ ║ requires removal of a current installation first. ║ ║ ║ ║ To uninstall current version and re-install latest "msedge": ║ ║ ║ ║ - Close all running instances of "msedge", if any ║ ║ - Use "--force" to install browser: ║ ║ ║ ║ playwright install --force msedge ║ ║ ║ ║ <3 Playwright Team ║ ╚═════════════════════════════════════════════════════════════════╝
使用过程中会出现这个
因为课程内容大小不一样 重复这个过程最多能够下载完成3个视频 但是剩下的就怎么都下载不完了 有的章节10来个视频呢
如果使用下载课程全部视频 会继续上面的那个错误跳到下个章节序列继续下载 但是也是下载不全 不知道怎么解决
def run_shell(shell, retry=True, retry_times=3): cmd = subprocess.Popen( shell, close_fds=True, shell=True, bufsize=1, stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL, )
if retry and cmd.returncode != 0:
time.sleep(1)
if retry_times > 0:
return run_shell(shell, retry=True, retry_times=retry_times - 1)
print('\nShell出现异常，请自行查看课程文件是否转码成功')
return cmd.returncode
我感觉是不是这个地方有问题造成的 是不是def run_shell(shell, retry=True, retry_times=3): 这个retry_times=3 值修改大一点?
#55 问题已经解决了。
然后，发现收费的视频无法下载，log里面报错： Incorrect AES key length (39 bytes)
完整日志：
2022-11-28 20:07:31,902 - INFO - cid: 453949 2022-11-28 20:07:41,608 - ERROR - Task exception was never retrieved future: <Task finished name='Task-9' coro=<download_single() done, defined at D:\qcourse_scripts-main\downloader.py:138> exception=ValueError('Incorrect AES key length (39 bytes)')> Traceback (most recent call last): File "D:\qcourse_scripts-main\downloader.py", line 150, in download_single decrypt_file(str(file) + '.ts', key) File "D:\qcourse_scripts-main\downloader.py", line 28, in decrypt_file dec = decrypt(ciphertext, key) ^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\downloader.py", line 20, in decrypt cipher = AES.new(key, AES.MODE_CBC, iv) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 232, in new return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\__init__.py", line 79, in _create_cipher return modes[mode](factory, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher cipher_state = factory._create_base_cipher(kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 93, in _create_base_cipher raise ValueError("Incorrect AES key length (%d bytes)" % len(key)) ValueError: Incorrect AES key length (39 bytes) 2022-11-28 20:07:45,755 - ERROR - Task exception was never retrieved future: <Task finished name='Task-17' coro=<download_single() done, defined at D:\qcourse_scripts-main\downloader.py:138> exception=ValueError('Incorrect AES key length (39 bytes)')> Traceback (most recent call last): File "D:\qcourse_scripts-main\downloader.py", line 150, in download_single decrypt_file(str(file) + '.ts', key) File "D:\qcourse_scripts-main\downloader.py", line 28, in decrypt_file dec = decrypt(ciphertext, key) ^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\downloader.py", line 20, in decrypt cipher = AES.new(key, AES.MODE_CBC, iv) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 232, in new return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\__init__.py", line 79, in _create_cipher return modes[mode](factory, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher cipher_state = factory._create_base_cipher(kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 93, in _create_base_cipher raise ValueError("Incorrect AES key length (%d bytes)" % len(key)) ValueError: Incorrect AES key length (39 bytes) 2022-11-28 20:07:45,757 - ERROR - Task exception was never retrieved future: <Task finished name='Task-18' coro=<download_single() done, defined at D:\qcourse_scripts-main\downloader.py:138> exception=ValueError('Incorrect AES key length (39 bytes)')> Traceback (most recent call last): File "D:\qcourse_scripts-main\downloader.py", line 150, in download_single decrypt_file(str(file) + '.ts', key) File "D:\qcourse_scripts-main\downloader.py", line 28, in decrypt_file dec = decrypt(ciphertext, key) ^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\downloader.py", line 20, in decrypt cipher = AES.new(key, AES.MODE_CBC, iv) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 232, in new return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\__init__.py", line 79, in _create_cipher return modes[mode](factory, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher cipher_state = factory._create_base_cipher(kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "D:\qcourse_scripts-main\qcourse-venv\Lib\site-packages\Crypto\Cipher\AES.py", line 93, in _create_base_cipher raise ValueError("Incorrect AES key length (%d bytes)" % len(key)) ValueError: Incorrect AES key length (39 bytes) 2022-11-28 20:07:45,757 - ERROR - Task exception was never retrieved future: <Task finished name='Task-19' coro=<download_single() done, defined at D:\qcourse_scripts-main\downloader.py:138> exception=ValueError('Incorrect AES key length (39 bytes)')> Traceback (most recent call last): File "D:\qcourse_scripts-main\downloader.py", line 150, in download_single
所以请问是不是不能下载收费的视频，因为我试了一下免费的视频是可以下载的。
Traceback (most recent call last):
File "qcourse.py", line 154, in
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
[■■■■■■■■■■■■■■■■■■■■■■■■■■■ ] 91%Traceback (most recent call last): File "qcourse.py", line 154, in <module> main() File "qcourse.py", line 106, in main asyncio.run(parse_course_url_and_download(course_url)) File "C:\Users\admin\AppData\Local\Programs\Python\Python38\lib\asyncio\runners.py", line 44, in run return loop.run_until_complete(main) File "C:\Users\admin\AppData\Local\Programs\Python\Python38\lib\asyncio\base_events.py", line 616, in run_until_complete return future.result() File "qcourse.py", line 68, in parse_course_url_and_download await download_single(urls[0], urls[1], filename, path) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\downloader.py", line 150, in download_single decrypt_file(str(file) + '.ts', key) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\downloader.py", line 28, in decrypt_file dec = decrypt(ciphertext, key) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\downloader.py", line 20, in decrypt cipher = AES.new(key, AES.MODE_CBC, iv) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\qcourse-venv\lib\site-packages\Crypto\Cipher\AES.py", line 232, in new return _create_cipher(sys.modules[__name__], key, mode, *args, **kwargs) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\qcourse-venv\lib\site-packages\Crypto\Cipher\__init__.py", line 79, in _create_cipher return modes[mode](factory, **kwargs) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\qcourse-venv\lib\site-packages\Crypto\Cipher\_mode_cbc.py", line 274, in _create_cbc_cipher cipher_state = factory._create_base_cipher(kwargs) File "C:\Users\admin\Documents\qcourse_scripts-main\qcourse_scripts-main\qcourse-venv\lib\site-packages\Crypto\Cipher\AES.py", line 93, in _create_base_cipher raise ValueError("Incorrect AES key length (%d bytes)" % len(key)) ValueError: Incorrect AES key length (39 bytes)
这是最后一个几乎所有操作都由selenium驱动的版本，不再更新。
后面只会更新playwright+腾讯课堂官方api的版本，需要老版本的可以来这里下载
新版本优化了效率，bug也更少，推荐使用新版
Source code(tar.gz)
