Reading a binary file with python

Question

I find particularly difficult reading binary file with Python. Can you give me a hand? I need to read this file, which in Fortran 90 is easily read by

int*4          


        

Answer 1

To read a binary file to a bytes object:

from pathlib import Path
data = Path('/path/to/file').read_bytes()  # Python 3.5+

To create an int from bytes 0-3 of the data:

i = int.from_bytes(data[:4], byteorder='little', signed=False)

To unpack multiple ints from the data:

import struct
ints = struct.unpack('iiii', data[:16])

• pathlib
• int.from_bytes()
• struct