python read binary file

[bowlofred]

Looks like at least partly you have a byte string. When printed by default, if the byte maps to an ASCII character (like \x20), then it prints that character. \x20 is a space, so the 20s are removed and replaced with spaces in your printout.

If you just need the hex values, you could use (among other things) the hex method.

>>> b = b'\x14\x02\x01\x00\x20\x00\x00\x00\x03\x18\x90\x42\x57\x23\x08\x00\x57\x23\x08\x00'
>>> b
b'\x14\x02\x01\x00 \x00\x00\x00\x03\x18\x90BW#\x08\x00W#\x08\x00'
>>> b.hex()
'1402010020000000031890425723080057230800'

If you want the specific format, you could split it up and add the "\x" in front.

>>> h = b.hex()
>>> print("".join([f"\\x{h[i:i+2]}" for i,_ in enumerate(h[::2])]))
\x14\x40\x02\x20\x01\x10\x00\x02\x20\x00\x00\x00\x00\x00\x00\x00\x03\x31\x18\x89