How to write 1 byte to a binary file?

Question

I\'ve tried everything to write just one byte to a file in python.

i = 10
fh.write( six.int2byte(i) )

will output \'0x00 0x0a\'

Answer 1

struct.pack("=b",i) (signed) and struct.pack("=B",i) (unsigned) pack an integer as a single byte which you can see in the docs for struct. ("=" is for using standard size and ignoring alignment - just in case) so you can do

import struct
i=10
with open('binfile', 'wb') as f:
    f.write(struct.pack("=B",i))