Hi Kamilche,
Aside from the 7bit confusion you should take a look at the 'struct'
module. I bet it will simplify your life considerably.
#two chars
import struct
struct.pack('cc','A','B')
'AB'
#unsigned short + two chars
struct.pack('Hcc',65535,'a','b')
'\xff\xffab'
Cheers
Lars
--
On 23 Feb 2005 22:06:54 -0800, Kamilche [EMAIL PROTECTED]
wrote:
I'm trying to pack two characters into a single byte, and the shifting
in Python has me confused.
Essentially, it should be possible to use a 'packed string' format in
Python, where as long as the characters you're sending are in
At programming level it seems correct (a part a return closure
needed for the main function).
But the error is IMHO conceptual:
for a char you need 7 bits (from 0 to 127 or in hex from x00 to x7F)
and you can't accomodate the other char in only one bit!
The other 128 symbols (from 128 to 255 or
John Machin [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Essentially, it should be possible to use a 'packed string' format in
Python, where as long as the characters you're sending are in the ASCII
range 0 to 127, two will fit in a byte.
It should be possible, but only in a
Dennis Lee Bieber [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
On 23 Feb 2005 22:06:54 -0800, Kamilche [EMAIL PROTECTED]
declaimed the following in comp.lang.python:
Essentially, it should be possible to use a 'packed string' format in
Python, where as long as the characters
Dennis Lee Bieber wrote:
On Thu, 24 Feb 2005 14:22:59 -, Richard Brodie [EMAIL PROTECTED]
declaimed the following in comp.lang.python:
John Machin [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Essentially, it should be possible to use a 'packed string' format in
Python, where as
Quite. Although you can sort of see how one might naively arrive at
this
conclusion: one 7-bit char takes 0...127, which when you put it into
an
8-bit byte leaves 128...255 unused for a second char
James
Yep, that's what I was doing. Guess I was too tired to program usefully
last night.
I'm trying to pack two characters into a single byte, and the shifting
in Python has me confused.
Essentially, it should be possible to use a 'packed string' format in
Python, where as long as the characters you're sending are in the ASCII
range 0 to 127, two will fit in a byte.
Here's the code.
