MIL-004: top 100 movies scraper #38
@@ -161,6 +161,52 @@ A short summary in our own words; it is not legal advice.
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- **Commercial use** of scraped data invites expensive disputes even where the scraping itself was allowed.
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- **Commercial use** of scraped data invites expensive disputes even where the scraping itself was allowed.
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- **Be a good guest:** prefer an official API when there is one, read the site's `robots.txt` to see what it allows, and send at most one request a minute. This project fetches one page per run and identifies itself with a `User-Agent`.
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- **Be a good guest:** prefer an official API when there is one, read the site's `robots.txt` to see what it allows, and send at most one request a minute. This project fetches one page per run and identifies itself with a `User-Agent`.
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### Project: 100 movies to watch
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The assignment: scrape Empire's "100 Greatest Movies" and write `movies.txt` with the titles numbered from `1)` upwards. The code is `infrastructure/empire_movies.py` (parsing), `domain/movie.py` (reverse and number) and `infrastructure/movie_file.py` (writing). `--source wayback` (default) reads the Internet Archive snapshot of May 2020 that the assignment pins, `--source live` reads the current Empire page and `--source fixture` reads the saved headings in `tests/fixtures/`.
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**1. Choose the page** (the saved headings of the page)
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**2. Inspect the markup** (the 2020 page has `<h3 class="title">`; the current page has `<h2><strong>` headings that start with a rank)
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```bash
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python -m scrape_movies movies markup
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```
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**3. Titles in page order** (`select("h3.title")` and a list comprehension over `get_text()`; the page counts down from 100)
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```bash
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python -m scrape_movies movies titles
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```
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**4. Reverse the list** (`titles[::-1]`, so the list counts up from 1)
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```bash
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python -m scrape_movies movies reversed
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```
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**5. Write `movies.txt`** (a `with open(...)` block, one title per line)
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```bash
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python -m scrape_movies movies write
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```
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**6. The result**
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The committed [`movies.txt`](./movies.txt) was produced with `--source fixture` on 2026-10-28 from the current Empire list, so its ranking differs from the 2020 list in the lecture video. The Internet Archive answered `429 Too Many Requests` while this project was built, so the snapshot is read live only; its `h3.title` layout is covered by a hand-written sample in the tests.
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## 🧪 Tests
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## 🧪 Tests
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```bash
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```bash
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After Width: | Height: | Size: 84 KiB |
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After Width: | Height: | Size: 9.3 KiB |
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After Width: | Height: | Size: 35 KiB |
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After Width: | Height: | Size: 34 KiB |
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After Width: | Height: | Size: 36 KiB |
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After Width: | Height: | Size: 39 KiB |
@@ -39,18 +39,21 @@ def capture_page(url: str, target: Path) -> Path:
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@return The path of the PNG.
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@return The path of the PNG.
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"""
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"""
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target.parent.mkdir(parents=True, exist_ok=True)
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target.parent.mkdir(parents=True, exist_ok=True)
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subprocess.run(
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browser = find_browser()
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for mode in ("new", "old"):
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result = subprocess.run(
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[
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[
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find_browser(),
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browser,
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"--headless=new",
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f"--headless={mode}",
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"--disable-gpu",
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"--disable-gpu",
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"--hide-scrollbars",
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"--hide-scrollbars",
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f"--window-size={WINDOW}",
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f"--window-size={WINDOW}",
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f"--screenshot={target}",
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f"--screenshot={target}",
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url,
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url,
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],
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],
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check=True,
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capture_output=True,
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capture_output=True,
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timeout=120,
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timeout=120,
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)
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)
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if result.returncode == 0 and target.exists():
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return target
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return target
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raise RuntimeError(f"The browser could not capture {url}")
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@@ -29,10 +29,20 @@ STEPS: dict[str, list[str]] = {
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"hn-4-links": ["hacker-news", "links"],
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"hn-4-links": ["hacker-news", "links"],
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"hn-5-upvotes": ["hacker-news", "upvotes"],
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"hn-5-upvotes": ["hacker-news", "upvotes"],
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"hn-6-top": ["hacker-news", "top"],
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"hn-6-top": ["hacker-news", "top"],
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"movies-2-markup": ["movies", "markup", "--source", "fixture"],
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"movies-3-titles": ["movies", "titles", "--source", "fixture"],
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"movies-4-reversed": ["movies", "reversed", "--source", "fixture"],
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"movies-5-write": ["movies", "write", "--source", "fixture"],
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}
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}
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## Screenshots of a file's first lines: image name, file and number of lines.
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FILES: dict[str, tuple[str, int]] = {"movies-6-file": ("movies.txt", 15)}
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## Screenshots of real web pages: image name and the address of the page.
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## Screenshots of real web pages: image name and the address of the page.
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PAGES: dict[str, str] = {
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PAGES: dict[str, str] = {
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"hn-1-page": "https://appbrewery.github.io/news.ycombinator.com/",
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"hn-1-page": "https://appbrewery.github.io/news.ycombinator.com/",
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# The live page opens a consent wall, so the saved headings are drawn instead.
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"movies-1-page": (
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ROOT / "tests" / "fixtures" / "empire_live_excerpt.html"
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).as_uri(),
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}
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}
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@@ -63,6 +73,13 @@ def main() -> None:
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for name, args in STEPS.items():
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for name, args in STEPS.items():
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if name.startswith(prefix):
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if name.startswith(prefix):
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print(capture(name, args))
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print(capture(name, args))
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for name, (file_name, count) in FILES.items():
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if name.startswith(prefix):
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text = (ROOT / file_name).read_text(encoding="utf-8")
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target = IMAGES / f"{name}.png"
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shown = os.linesep.join(text.splitlines()[:count])
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render(f"head -n {count} {file_name}", shown, target)
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print(target)
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for name, url in PAGES.items():
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for name, url in PAGES.items():
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if name.startswith(prefix):
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if name.startswith(prefix):
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print(capture_page(url, IMAGES / f"{name}.png"))
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print(capture_page(url, IMAGES / f"{name}.png"))
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