Simple hex dump using python. using binascii and struct modules

SimpleHexDump.py

#try to write a simple hex dump
import binascii,struct

fd = open("abcd.exe", "r")
fd_contents_str = fd.read()
fd_contents_hex = (binascii.b2a_hex(fd_contents_str)).upper()

Hex_dump = []
Byte_str = ""
for i, Half_byte in enumerate(fd_contents_hex):

    Byte_str = Byte_str + Half_byte
    if i % 2:
        Byte_hex = struct.unpack('2b', Byte_str)#"4D" converted into (52,68)
        Hex_dump.append(Byte_hex)
        Byte_str = ""

print Hex_dump

fd.close()

simple hex dumper using python
demo use of modules in binascii and struct for manipulating hex values and bytes.