Skip to main content

A pragmatic pipeline around trafilatura for JS-rendered pages and list discovery.

Project description

trafi-pipeline

基于 trafilatura 的“组合式”网页正文抽取管线:先抓取/渲染,再抽取;支持列表页发现详情页,再批量抽取。

特性

  • 自动渲染策略:auto | always | never,正文过短或抓取失败时可自动切换渲染
  • auto 模式还会根据页面“展开/更多/阅读全文”等标记触发渲染,避免只抓到摘要
  • 列表页爬取:按深度与页数限制发现详情页链接
  • 代理支持:抓取/渲染分别配置代理
  • 图片处理:保留图片、追加图片列表、或原位插入(Markdown)
  • 元数据:标题、来源站点、耗时等

安装

pip install trafi-pipeline

建议完整安装(抓取 + 渲染能力都具备):

pip install "trafi-pipeline[http,render]"
python -m playwright install chromium

分开安装(更细粒度控制):

pip install "trafi-pipeline[http]"      # 使用 httpx
pip install "trafi-pipeline[render]"    # 使用 Playwright 进行渲染

说明:

  • 默认配置 render.mode="auto",可能会触发渲染;若未安装 render 依赖或未安装浏览器,将导致结果为空或报错。
  • 如果不需要渲染,请显式设置 render.mode="never",避免依赖缺失导致失败。

快速开始

from trafipipe import Pipeline, PipelineConfig

pipeline = Pipeline(PipelineConfig())
result = pipeline.extract_url("https://example.com/article")
print(result.text)

返回字段(ExtractResult):

  • text:正文
  • title:标题
  • source:来源站点
  • images:图片 URL 列表
  • videos:视频 URL 列表
  • used_render:是否使用渲染
  • status_code:抓取到的 HTTP 状态码(抓取失败时可能为空)
  • elapsed_ms:耗时(毫秒)
  • fetch_ms:抓取耗时(毫秒)
  • render_ms:渲染耗时(毫秒)
  • extract_ms:正文抽取耗时(毫秒)
  • image_ms:图片收集耗时(毫秒)
  • video_ms:视频收集耗时(毫秒)
  • error:错误信息(如有)

常见配置

代理与渲染

from trafipipe import Pipeline, PipelineConfig, ProxyConfig

cfg = PipelineConfig()
cfg.fetch.proxy = ProxyConfig(http="http://user:pass@host:port", https="http://user:pass@host:port")
cfg.render.proxy = ProxyConfig(server="http://user:pass@host:port")
cfg.render.extra_headers = {
    "Accept-Language": "zh-CN,zh;q=0.9,en;q=0.8",
    "Referer": "https://mp.weixin.qq.com/",
}
cfg.render.cookies = [
    {"name": "your_cookie", "value": "xxx", "domain": ".mp.weixin.qq.com", "path": "/"}
]
cfg.render.reuse_context = True  # 批量渲染时复用 context 以提速

pipeline = Pipeline(cfg)
result = pipeline.extract_url("https://example.com/article")

图片保留与输出格式

cfg = PipelineConfig()
cfg.extract.keep_images = True
cfg.extract.append_images = True   # 在正文末尾追加 [Images] 列表
cfg.extract.inline_images = False  # 设为 True 时输出 Markdown 并原位插入图片(对所有站点生效)
cfg.extract.keep_videos = True
cfg.extract.append_videos = False  # 在正文末尾追加 [Videos] 列表
cfg.extract.inline_videos = False  # 设为 True 时会在正文中插入 [Video] url
cfg.extract.output_format = "txt"  # "txt" 或 "md"

说明:

  • inline_images=Trueoutput_format="txt" 时,会把 ![](url) 转为 [Image] url
  • inline_videos=True 时,会把 HTML 中的 <video>/<source> 转成 [Video] url

微信文章图片(mp.weixin.qq.com)

from trafipipe import Pipeline, PipelineConfig

cfg = PipelineConfig()
cfg.extract.keep_images = True
cfg.extract.append_images = True
cfg.render.mode = "auto"  # 如图片仍缺失可改为 "always"
cfg.render.extra_headers = {"Referer": "https://mp.weixin.qq.com/"}
cfg.render.cookies = [
    {"name": "your_cookie", "value": "xxx", "domain": ".mp.weixin.qq.com", "path": "/"}
]

result = Pipeline(cfg).extract_url("https://mp.weixin.qq.com/s/xxxxxx")
print(result.images)

列表页发现链接并抽取

from trafipipe import Pipeline, PipelineConfig

cfg = PipelineConfig()
cfg.crawl.max_pages = 50
cfg.crawl.max_depth = 2
cfg.crawl.max_workers = 4  # 并发抓取列表页

pipeline = Pipeline(cfg)
urls = pipeline.crawl(["https://example.com/list"])
results = pipeline.crawl_and_extract(urls, max_workers=4)

CLI

trafipipe extract https://example.com/article
trafipipe crawl https://example.com/list --max-pages 50 --max-depth 2 --workers 4

开发

pip install -e ".[dev]"
pytest
ruff check .

性能基准

python doc/benchmark.py --file doc/urls.txt --render auto --repeat 1
python doc/benchmark.py --file doc/urls.txt --format csv --summary > report.csv
python doc/benchmark.py --file doc/urls.txt --format json --summary > report.json

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

trafi_pipeline-0.1.4.tar.gz (109.8 kB view details)

Uploaded Source

Built Distribution

If you're not sure about the file name format, learn more about wheel file names.

trafi_pipeline-0.1.4-py3-none-any.whl (20.7 kB view details)

Uploaded Python 3

File details

Details for the file trafi_pipeline-0.1.4.tar.gz.

File metadata

  • Download URL: trafi_pipeline-0.1.4.tar.gz
  • Upload date:
  • Size: 109.8 kB
  • Tags: Source
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.12.7

File hashes

Hashes for trafi_pipeline-0.1.4.tar.gz
Algorithm Hash digest
SHA256 8b25d51fa1876134911076f8ccd9446a9b6b60dfbac1b33d1804ecf57b79feb5
MD5 99f339526222fc20a93baf14f2690e48
BLAKE2b-256 79532f0fa3be1688d92c7b8ed84c109dc689261850a3207356636d0c1ab289c7

See more details on using hashes here.

File details

Details for the file trafi_pipeline-0.1.4-py3-none-any.whl.

File metadata

  • Download URL: trafi_pipeline-0.1.4-py3-none-any.whl
  • Upload date:
  • Size: 20.7 kB
  • Tags: Python 3
  • Uploaded using Trusted Publishing? No
  • Uploaded via: twine/6.2.0 CPython/3.12.7

File hashes

Hashes for trafi_pipeline-0.1.4-py3-none-any.whl
Algorithm Hash digest
SHA256 dec4d9c8c73f05ddabc4f681907af3cc3ecb58439e68997360c5ac538680d536
MD5 0ccd911d5407b47c100a4fb5996af5f5
BLAKE2b-256 db29f5ae8c75d229030036716931cee7c5a5cc1f74a97be26bc7e85d55e1dd77

See more details on using hashes here.

Supported by

AWS Cloud computing and Security Sponsor Datadog Monitoring Depot Continuous Integration Fastly CDN Google Download Analytics Pingdom Monitoring Sentry Error logging StatusPage Status page