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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 Access Key
--sk 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 数据集 ID
--version master 版本号
--source-path 源文件路径,如果是目录则下载整个目录
--target-path . (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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