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How to Read Binary File Bytes and Inspect the Header in Python

Read the first bytes of a binary file with pathlib and display them as a hex dump plus an ASCII view to inspect file headers.

binary file-io hex
Python 
import pathlib

def inspect_binary_header(filepath: str, num_bytes: int = 16) -> None:
    """Read the first bytes of a binary file and display them as hex and ASCII."""
    path = pathlib.Path(filepath)
    data = path.read_bytes()[:num_bytes]
    
    hex_str = ' '.join(f"{byte:02x}" for byte in data)
    ascii_str …
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