| import requests | |
| import os, time | |
| from typing import Optional | |
| BASE_API = "https://glycoshape.org/api/analysis/torsion/" | |
| BASE_PAGE = "https://glycoshape.org/glycan?glytoucan=" | |
| def download_torsion(glycan_id: str, save_dir: str = "../torsion_data") -> Optional[str]: | |
| """ | |
| Download torsion data for a given GlycoShape glycan ID. | |
| Parameters | |
| ---------- | |
| glycan_id : str | |
| GlycoShape ID (e.g. GS00114) | |
| save_dir : str | |
| Directory where the file will be saved | |
| Returns | |
| ------- | |
| Optional[str] | |
| Path to the saved file, or None if the download failed | |
| """ | |
| api_url = f"{BASE_API}{glycan_id}" | |
| file_name = f"{glycan_id}_torsion_data.txt" | |
| headers = { | |
| "User-Agent": ( | |
| "Mozilla/5.0 (Windows NT 10.0; Win64; x64) " | |
| "AppleWebKit/537.36 (KHTML, like Gecko) " | |
| "Chrome/122.0.0.0 Safari/537.36" | |
| ), | |
| "Referer": f"{BASE_PAGE}{glycan_id}", | |
| "Accept": "application/json, text/plain, */*", | |
| "Origin": "https://glycoshape.org", | |
| } | |
| os.makedirs(save_dir, exist_ok=True) | |
| save_path = os.path.join(save_dir, file_name) | |
| try: | |
| response = requests.get(api_url, headers=headers, timeout=30) | |
| response.raise_for_status() | |
| with open(save_path, "w", encoding="utf-8") as f: | |
| f.write(response.text) | |
| print(f"Download successful: {glycan_id}") | |
| print(f"Saved to: {save_path}") | |
| print(f"Preview: {response.text[:100]}...") | |
| return save_path | |
| except requests.exceptions.HTTPError as e: | |
| print(f"HTTP error while downloading {glycan_id}: {e}") | |
| except requests.exceptions.ConnectionError: | |
| print("Network connection error") | |
| except Exception as e: | |
| print(f"Unexpected error: {e}") | |
| return None | |
| if __name__ == "__main__": | |
| GS_list=os.listdir('../raw_data/') | |
| print("GS_list",len(GS_list),GS_list) | |
| for GS in GS_list: | |
| download_torsion(GS) | |
| time.sleep(1) |