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Nothing is more frustrating than a failed script, a corrupted file, or a timeout error when trying to pull historical trade data. If you are searching for the you are likely facing one of the three dreaded errors: Checksum mismatch , Partial download , or Decoding failure .
with open("output.pb", "wb") as f: for chunk in response.iter_content(chunk_size=8192): if chunk: f.write(chunk)
Open your terminal (Linux/Mac) or WSL2 (Windows) and run: