Function print_bytes

png.py:564–585

Take bytes type and print a formated string

(bytes:bytes, start:int=0, group_size:int=4)

def print_bytes(bytes:bytes, start:int=0, group_size:int=4) -> None:
    """Take bytes type and print a formated string"""
    # Initiate a list where each element is a string in formate of
    # index_n+1 ... index_n+group_size | hex_n+1 ... hex_n+group_size
    output = []
    # Loop through the bytes in groups of 'group_size'
    for index in range(len(bytes[start:]) // group_size):
        output.append("\t".join(str(index * group_size + i + start) for i in range(group_size)) +
                      "\t|\t" +
                      "\t".join(
                          bytes[index * group_size + i + start :
                                index * group_size + i + start + 1].hex().upper() 
                                for i in range(group_size)))
    if len(bytes[start:]) % group_size != 0:
        # Create a line for the remaining bytes (if any)
        index += 1
        output.append("\t".join(str(index * group_size + i + start) for i in range(group_size)) +
                    "\t|\t" +
                    "\t".join(bytes[index * group_size + i + start :
                                index * group_size + i + start + 1].hex().upper() 
                                for i in range(len(bytes[start:]) % group_size)))
    print("\n".join(output))