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

You can just build a bytes object with that value:

with open('my_file', 'wb') as f:
    f.write(bytes([10]))

This works only in python3. If you replace bytes with bytearray it works in both python2 and 3.

Also: remember to open the file in binary mode to write bytes to it.