一个功能强大的增强型下载模块,支持多线程下载、断点续传和进度显示
Project description
Enhanced Downloader
一个功能强大的Python下载模块,支持:
- 单线程和多线程下载
- 自动检测服务器是否支持分片
- 断点续传
- 进度显示
- 返回内容或保存到文件
- 智能下载策略
安装
pip install enhanced_downloader
使用示例
from enhanced_downloader import download_file
# 下载并保存到指定路径
download_path = download_file("https://example.com/large_file.zip", save_path="/path/to/save")
print(f"文件保存路径: {download_path}")
# 下载并返回内容
file_content = download_file("https://example.com/file.txt", return_content=True)
print(f"获取到文件内容,大小: {len(file_content)} 字节")
# 使用更多参数
download_path = download_file(
url="https://example.com/large_file.zip",
save_path="output.zip",
num_threads=20,
timeout=60,
temp_dir="/tmp/downloads",
min_size_for_multithread=5*1024*1024 # 5MB以上使用多线程
)
高级用法
from enhanced_downloader import EnhancedDownloader
# 创建下载器实例
downloader = EnhancedDownloader()
# 使用实例方法
downloader.download(
url="https://example.com/file.zip",
save_path="downloads/file.zip",
num_threads=30,
force_single_thread=False
)
参数说明
url: 下载链接save_path: 保存文件的路径,支持目录或完整文件路径return_content: 是否返回文件内容而不是保存到本地chunk_size: 下载块大小timeout: 请求超时时间(秒)num_threads: 多线程下载时的线程数temp_dir: 临时文件目录force_single_thread: 是否强制使用单线程下载min_size_for_multithread: 启用多线程下载的最小文件大小
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