A SDK for file downloading with resumable and multi-threaded features.
Project description
Dataset Downloader
一个支持断点续传和多线程功能的文件下载SDK。
功能特性
- 支持断点续传下载
- 多线程并发下载
- 进度条显示
- 自动重试机制
- 文件完整性校验
安装
从PyPI安装(推荐)
pip install dataset-down
开发模式安装
# 克隆仓库
git clone https://github.com/your-repo/dataset-down.git
cd dataset-down
# 构建分发包
python setup.py sdist bdist_wheel
# 安装构建好的包
pip install dist/dataset_down-0.1.0-py3-none-any.whl
# 以开发模式安装(代码修改即时生效)
pip install -e .
卸载与更新
# 卸载
pip uninstall dataset-down
# 更新到最新版本
pip install --upgrade dataset-down
# 更新到指定版本
pip install dataset-down==0.1.0
依赖包
本项目依赖以下Python包:
requests- HTTP库,用于文件下载tqdm- 进度条显示click- 命令行界面构建psutil- 系统资源监控filelock- 文件锁机制pytz- 时区处理
安装依赖
pip install requests tqdm click psutil filelock pytz
认证配置
在使用SDK功能前,需要先进行认证:
dataset-down login --ak YOUR_ACCESS_KEY --sk YOUR_SECRET_KEY
支持的命令
登录
dataset-down login [OPTIONS]
参数说明:
| 参数 | 是否必需 | 描述 |
|---|---|---|
--ak |
是 | Access Key |
--sk |
是 | Secret Key |
示例:
dataset-down login --ak YOUR_ACCESS_KEY --sk YOUR_SECRET_KEY
下载文件或文件夹
dataset-down download [OPTIONS]
参数说明:
| 参数 | 是否必需 | 默认值 | 描述 |
|---|---|---|---|
--dataset-id |
是 | 无 | 数据集 ID |
--version |
否 | master |
版本号 |
--source-path |
是 | 无 | 源文件路径,如果是目录则下载整个目录 |
--target-path |
否 | . (当前目录) |
目标保存路径 |
示例:
# 下载指定数据集的文件
dataset-down download --dataset-id my_dataset --source-path /path/to/file.txt --target-path /path/to/save --version master
# 下载整个目录到指定位置
dataset-down download --dataset-id my_dataset --source-path /data/dir --target-path ./local_dir --version master
停止正在运行的下载进程
dataset-down stop_running_downloading_process
断点续传
- 如果下载中断,只需重新执行相同的命令,程序会自动从断点处继续下载。
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