| |
| |
| |
| |
| ''' |
| Download EGMO data |
| |
| Notes: |
| 2012 and 2014, the pdf with solutions was downloaded to the official homepage. |
| |
| To run: |
| `python EGMO/download_script/download.py` |
| ''' |
|
|
| import requests |
| from requests.adapters import HTTPAdapter |
| from tqdm import tqdm |
| from bs4 import BeautifulSoup |
| from urllib.parse import urljoin |
| from urllib3.util.retry import Retry |
| from pathlib import Path |
|
|
|
|
| def build_session( |
| max_retries: int = 3, |
| backoff_factor: int = 2, |
| session: requests.Session = None |
| ) -> requests.Session: |
| """ |
| Build a requests session with retries |
| |
| Args: |
| max_retries (int, optional): Number of retries. Defaults to 3. |
| backoff_factor (int, optional): Backoff factor. Defaults to 2. |
| session (requests.Session, optional): Session object. Defaults to None. |
| """ |
| session = session or requests.Session() |
| adapter = HTTPAdapter(max_retries=Retry(total=max_retries, backoff_factor=backoff_factor)) |
| session.mount("http://", adapter) |
| session.mount("https://", adapter) |
| session.headers.update({ |
| "User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3" |
| }) |
|
|
| return session |
|
|
|
|
| def main(): |
| base_url = "https://www.egmo.org/egmos/" |
|
|
| output_dir = Path(__file__).parent.parent / "raw" |
| output_dir.mkdir(parents=True, exist_ok=True) |
|
|
| req_session = build_session() |
|
|
| resp = req_session.get(base_url) |
| soup = BeautifulSoup(resp.text, "html.parser") |
| egmo_list_ele = soup.find("table", class_="egmo-list") |
|
|
| for year_a_ele in tqdm(egmo_list_ele.select("tr > td:nth-child(2) > a")): |
| year = year_a_ele.get_text(strip=True) |
|
|
| year_page_url = urljoin(base_url, year_a_ele["href"]) |
| html_resp = req_session.get(year_page_url) |
| html_soup = BeautifulSoup(html_resp.text, "html.parser") |
|
|
| solution_pdf = html_soup.find_all("a", href=lambda h: "solutions" in h.lower() and h.lower().endswith(".pdf")) |
| problem_day1_pdf = html_soup.find("a", href=lambda h: "english" in h.lower() and "day1" in h.lower() and h.lower().endswith(".pdf")) |
| problem_day2_pdf = html_soup.find("a", href=lambda h: "english" in h.lower() and "day2" in h.lower() and h.lower().endswith(".pdf")) |
|
|
| |
| if solution_pdf: |
| for sp in solution_pdf: |
| sp_url = urljoin(year_page_url, sp["href"]) |
|
|
| output_file = output_dir / f"en-{year}-{sp_url.split("/")[-1]}" |
| if output_file.exists(): |
| continue |
|
|
| sp_resp = req_session.get(sp_url) |
| if sp_resp.status_code != 200: |
| print(f"Year {year}, Failed to download {sp_url}") |
| continue |
|
|
| output_file.write_bytes(sp_resp.content) |
| else: |
| |
| |
| if problem_day1_pdf: |
| p_d1_url = urljoin(year_page_url, problem_day1_pdf["href"]) |
|
|
| output_file = output_dir / f"en-{year}-{p_d1_url.split('/')[-1]}" |
| if output_file.exists(): |
| continue |
|
|
| p_d1_resp = req_session.get(p_d1_url) |
| if p_d1_resp.status_code != 200: |
| print(f"Year {year}, Failed to download {p_d1_url}") |
| continue |
|
|
| output_file.write_bytes(p_d1_resp.content) |
|
|
| |
| if problem_day2_pdf: |
| p_d2_url = urljoin(year_page_url, problem_day2_pdf["href"]) |
|
|
| output_file = output_dir / f"en-{year}-{p_d2_url.split('/')[-1]}" |
| if output_file.exists(): |
| continue |
|
|
| p_d2_resp = req_session.get(p_d2_url) |
| if p_d2_resp.status_code != 200: |
| print(f"Year {year}, Failed to download {p_d2_url}") |
| continue |
|
|
| output_file.write_bytes(p_d2_resp.content) |
|
|
|
|
| if __name__ == "__main__": |
| main() |
