May 28, 2025 · May 28, 2025 · May 28, 2025
diff --git a/PCbuild/get_external.py b/PCbuild/get_external.py
 from urllib.request import urlretrieve


 def retrieve_with_retries(download_location, output_path, reporthook,
                          max_retries=7):
    """Download a file with exponential backoff retry and save to disk."""
    for attempt in range(max_retries + 1):
        try:
            resp = urlretrieve(
                download_location,
                output_path,
                reporthook=reporthook,
            )
        except ConnectionError as ex:
            if attempt == max_retries:
                msg = f"Download from {download_location} failed."
                raise OSError(msg) from ex
            time.sleep(2.25**attempt)
        else:
            return resp


 def fetch_zip(commit_hash, zip_dir, *, org='python', binary=False, verbose):
    repo = f'cpython-{"bin" if binary else "source"}-deps'
    url = f'https://github.com/{org}/{repo}/archive/{commit_hash}.zip'
    reporthook = None
    if verbose:
        reporthook = print
    zip_dir.mkdir(parents=True, exist_ok=True)
    filename,headers =urlretrieve(
    filename,_headers =retrieve_with_retries(
        url,
        zip_dir / f'{commit_hash}.zip',
        reporthook=reporthook,
        reporthook
    )
    return filename
Original file line number	Diff line number	Diff line change
Expand Up		@@ -9,17 +9,36 @@
		from urllib.request import urlretrieve


		def retrieve_with_retries(download_location, output_path, reporthook,
		max_retries=7):
		"""Download a file with exponential backoff retry and save to disk."""
		for attempt in range(max_retries + 1):
		try:
		resp = urlretrieve(
		download_location,
		output_path,
		reporthook=reporthook,
		)
		except ConnectionError as ex:
		if attempt == max_retries:
		msg = f"Download from {download_location} failed."
		raise OSError(msg) from ex
		time.sleep(2.25**attempt)
		else:
		return resp


		def fetch_zip(commit_hash, zip_dir, *, org='python', binary=False, verbose):
		repo = f'cpython-{"bin" if binary else "source"}-deps'
		url = f'https://github.com/{org}/{repo}/archive/{commit_hash}.zip'
		reporthook = None
		if verbose:
		reporthook = print
		zip_dir.mkdir(parents=True, exist_ok=True)
		filename,headers =urlretrieve(
		filename,_headers =retrieve_with_retries(
		url,
		zip_dir / f'{commit_hash}.zip',
		reporthook=reporthook,
		reporthook
		)
		return filename

Expand Down