On Tuesday, 24 March 2015 20:14:06 UTC-7, otaksoft...@gmail.com wrote: > I have a list containing 9600 integer elements - each integer is either 0 or > 1. > > Starting at the front of the list, I need to combine 8 list elements into 1 > by treating them as if they were bits of one byte with 1 and 0 denoting bit > on/off (the 8th element would be the rightmost bit of the first byte). > > The end result should be a new list that is 8 x shorter than the original > list containing integers between 0 and 255. > > Speed is not of utmost importance - an elegant solution is. Any suggestions? > > Thanks for all input, > Kai
I though that the bytes type is Python 3 only? If so, I cannot use it. Using PILLOW, I am generating images from text and these are then sent to a black & white image rendering device which expects 8 one bit pixels as one byte (as a condensed format I guess). This device then "turns" bits into pixels again and displays the image that way. If that is clear enough for you to suggest a better way to achieve what I am after, I'd like to hear it. Kai -- https://mail.python.org/mailman/listinfo/python-list
