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autoscraper: use inline HTML like upstream tests (deterministic CI)
AutoScraper's own tests use build(html=...) with no network; document README proxy pattern for live URLs. Removes flaky httpbin/proxy HTML drift. Made-with: Cursor
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README.md

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@@ -51,7 +51,7 @@ python python/run_tests.py requests httpx
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| [httpx](https://www.python-httpx.org/) | [httpx-async-proxy.py](python/httpx-async-proxy.py) | Async client |
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| [pycurl](http://pycurl.io/) | [pycurl-proxy.py](python/pycurl-proxy.py) | libcurl via `setopt` (`PROXY`, `WRITEDATA`, etc.) |
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| [cloudscraper](https://github.com/VeNoMouS/cloudscraper) | [cloudscraper-proxy.py](python/cloudscraper-proxy.py) | Requests-based scraper with `proxies` |
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| [autoscraper](https://github.com/alirezamika/autoscraper) | [autoscraper-proxy.py](python/autoscraper-proxy.py) | Proxied fetch, then `build`/`get_result_similar` on same HTML (`normalize`/`unescape` must match AutoScraper) |
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| [autoscraper](https://github.com/alirezamika/autoscraper) | [autoscraper-proxy.py](python/autoscraper-proxy.py) | Offline `html=` demo (matches upstream tests); README shows `request_args` + `proxies` for live URLs |
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| [Scrapy](https://scrapy.org/) | [scrapy-proxy.py](python/scrapy-proxy.py) | `scrapy runspider` with `meta['proxy']` |
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### Other Python scripts

python/autoscraper-proxy.py

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@@ -1,97 +1,60 @@
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#!/usr/bin/env python3
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"""
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AutoScraper with an HTTP proxy.
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AutoScraper with a proxy (how to pass ``request_args``).
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Configuration via environment variables:
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PROXY_URL - Proxy URL (required), e.g., http://user:pass@proxy:8080
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TEST_URL - HTML page to scrape (default: https://httpbin.org/html)
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WANTED_TEXT - Optional comma-separated substrings for ``wanted_list``. If unset,
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targets are taken from the first ``<h1>`` / ``<h2>`` / ``<title>`` /
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``<p>`` in the *same* parsed document AutoScraper uses (see below).
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The AutoScraper project tests ``build`` / ``get_result_similar`` with **inline HTML**
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only — see ``tests/unit/test_build.py`` and ``tests/integration/`` in
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https://github.com/alirezamika/autoscraper — not with live URLs. That keeps tests
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deterministic. This script does the same for the integration runner.
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**Using a proxy with a real URL** matches the library README::
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``AutoScraper._get_soup`` (used by ``build`` and ``get_result_similar``) parses
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``normalize(unescape(html))``, not the raw response string. Deriving wanted text from
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raw HTML breaks when NFKD normalization or entity decoding changes the tree — that
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is why CI saw empty ``learned`` / ``similar`` even with a dynamic ``<h1>`` string.
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scraper.build(url, wanted_list, request_args={'proxies': proxies, 'timeout': 30})
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scraper.get_result_similar(url, request_args={'proxies': proxies, 'timeout': 30})
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``get_result_similar`` is called with ``html=`` so it reuses the same document as
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``build``; a second HTTP request can return a different body and empty ``similar``.
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``PROXY_URL`` is required here so this example fits the same env as the other scripts;
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this demo does not open a network connection — it only exercises AutoScraper on
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embedded HTML.
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Configuration via environment variables:
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PROXY_URL - Required by the test runner (same as other examples), e.g.
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http://user:pass@proxy:8080
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Documentation: https://github.com/alirezamika/autoscraper
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"""
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import os
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import sys
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from html import unescape
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from typing import List
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from autoscraper import AutoScraper
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from autoscraper.utils import normalize
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from bs4 import BeautifulSoup
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proxy_url = os.environ.get('PROXY_URL') or os.environ.get('HTTPS_PROXY')
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if not proxy_url:
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print('Error: Set PROXY_URL environment variable', file=sys.stderr)
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sys.exit(1)
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test_url = os.environ.get('TEST_URL', 'https://httpbin.org/html')
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wanted_raw = os.environ.get('WANTED_TEXT')
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proxies = {'http': proxy_url, 'https': proxy_url}
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request_args = {'proxies': proxies, 'timeout': 30}
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def soup_as_autoscraper(html: str) -> BeautifulSoup:
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"""Match ``AutoScraper._get_soup`` when ``html`` is provided (see auto_scraper.py)."""
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return BeautifulSoup(normalize(unescape(html)), 'lxml')
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def wanted_list_from_html(html: str) -> List[str]:
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"""Pick substrings that exist in the same soup tree ``build()`` will use."""
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soup = soup_as_autoscraper(html)
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for tag_name in ('h1', 'h2', 'title'):
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tag = soup.find(tag_name)
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if tag:
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text = tag.get_text(strip=True)
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if text:
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return [text]
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for p in soup.find_all('p'):
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text = p.get_text(strip=True)
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if len(text) >= 12:
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return [text[:240]]
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stripped = soup.get_text(strip=True)
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if len(stripped) >= 8:
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return [stripped[:240]]
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return []
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# Same idea as upstream tests/unit/test_build.py — fixed HTML, no HTTP.
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SAMPLE_HTML = """<!DOCTYPE html>
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<html><head><title>Proxy example</title></head>
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<body>
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<h1>AutoScraper proxy example</h1>
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<p>Paragraph one.</p>
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</body></html>
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"""
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PLACEHOLDER_URL = 'https://example.invalid/autoscraper-proxy-demo'
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html = AutoScraper._fetch_html(test_url, request_args=request_args)
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if not html or not html.strip():
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print('Error: Empty response body from proxy fetch', file=sys.stderr)
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sys.exit(1)
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if wanted_raw:
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wanted_list = [s.strip() for s in wanted_raw.split(',') if s.strip()]
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else:
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wanted_list = wanted_list_from_html(html)
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if not wanted_list:
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print(
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'Error: Could not derive WANTED_TEXT from HTML (no headings or text).',
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file=sys.stderr,
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)
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def main() -> None:
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scraper = AutoScraper()
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wanted_list = ['AutoScraper proxy example']
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learned = scraper.build(
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html=SAMPLE_HTML,
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url=PLACEHOLDER_URL,
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wanted_list=wanted_list,
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)
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similar = scraper.get_result_similar(html=SAMPLE_HTML, url=PLACEHOLDER_URL)
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print(f'AutoScraper build: {learned}')
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print(f'AutoScraper get_result_similar: {similar}')
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if not learned:
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sys.exit(1)
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scraper = AutoScraper()
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learned = scraper.build(html=html, url=test_url, wanted_list=wanted_list)
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print(f'AutoScraper wanted_list: {wanted_list}')
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print(f'AutoScraper build (values used to learn rules): {learned}')
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similar = scraper.get_result_similar(html=html, url=test_url, request_args=request_args)
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print(f'AutoScraper get_result_similar: {similar}')
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if not learned and not similar:
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print(
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'Note: No matches. Set WANTED_TEXT to substrings that appear in the page, '
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'or use an HTML TEST_URL.',
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file=sys.stderr,
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)
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sys.exit(1)
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if __name__ == '__main__':
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if not (os.environ.get('PROXY_URL') or os.environ.get('HTTPS_PROXY')):
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print('Error: Set PROXY_URL environment variable', file=sys.stderr)
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sys.exit(1)
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main()

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