If Only 2 By Kedibone Pdf: Download

save_folder: Destination directory for the PDF. Will be created automatically.

class ConditionalPdfDownloader: """ Download a PDF *only* when a pre‑condition about the file system is satisfied.

# Read the whole content (PDFs are usually <10 MiB, safe to keep in RAM) content = resp.content elapsed = time.perf_counter() - start return content, elapsed, resp.status_code if only 2 by kedibone pdf download

# Basic validation (fail early) if not self.check_folder.is_dir(): raise NotADirectoryError(f"Check folder does not exist or is not a directory: self.check_folder")

# ------------------------------------------------------------------ # Public API # ------------------------------------------------------------------ save_folder: Destination directory for the PDF

# Write atomically – write to a temporary file then rename tmp_path = target_path.with_suffix(".tmp") try: with open(tmp_path, "wb") as f: f.write(content) tmp_path.replace(target_path) # atomic on POSIX, safe on Windows too finally: # Clean up any stray temp file on failure if tmp_path.exists(): tmp_path.unlink(missing_ok=True)

# 2️⃣ Download ------------------------------------------------------- def _download_pdf(self) -> Tuple[bytes, float, int]: """ Returns a tuple ``(content, elapsed_seconds, http_status)``. Raises a clear exception on any network problem or non‑200 response. """ start = time.perf_counter() try: resp = requests.get( self.pdf_url, headers=self.headers, timeout=self.timeout, verify=self.verify_ssl, stream=True, # stream to avoid loading huge files in memory unnecessarily ) resp.raise_for_status() # will raise HTTPError for non‑2xx except (Timeout, ReqConnectionError) as e: raise RuntimeError(f"Network error while reaching `self.pdf_url`: e") from e except HTTPError as e: raise RuntimeError(f"HTTP error e.response.status_code while downloading PDF: e") from e except RequestException as e: raise RuntimeError(f"Unexpected request problem: e") from e # Read the whole content (PDFs are usually

import requests from requests.exceptions import RequestException, HTTPError, Timeout, ConnectionError as ReqConnectionError

return DownloadResult( success=True, pdf_path=saved_path, message="PDF downloaded and saved successfully.", elapsed_seconds=pdf_bytes[1], http_status=pdf_bytes[2], ) except Exception as exc: # pragma: no cover – all expected error paths raise custom messages return DownloadResult( success=False, pdf_path=None, message=str(exc), )

Example:

* Checks a folder (or any iterable of paths) and confirms there are **exactly two items**. * If the check passes, downloads a PDF from a supplied URL. * Saves the PDF to a destination folder with a safe filename. * Returns a rich result object (or raises an informative exception).