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Increase sleep during possible rate limit errors in downloads #565

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Increase sleep during possible rate limit errors in downloads #565

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7dc92d3
Display the number of retries
zanieb Mar 17, 2025
14c8640
Increase sleep during possible rate limit errors in downloads
zanieb Mar 17, 2025
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10 changes: 7 additions & 3 deletions pythonbuild/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -307,10 +307,14 @@ def download_to_path(url: str, path: pathlib.Path, size: int, sha256: str):
print(f"HTTP exception on {url}; retrying: {e}")
time.sleep(2**attempt)
except urllib.error.URLError as e:
print(f"urllib error on {url}; retrying: {e}")
time.sleep(2**attempt)
if e.errno in {403, 429}:
print(f"possible rate limit error on {url}; retrying: {e}")
time.sleep(2 ** (attempt + 2))
else:
print(f"urllib error on {url}; retrying: {e}")
time.sleep(2**attempt)
else:
raise Exception("download failed after multiple retries: %s" % url)
raise Exception(f"download failed after {attempt} retries: {url}")

tmp.rename(path)
print("successfully downloaded %s" % url)
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