On Wed, Apr 6, 2011 at 4:17 PM, Littlefield, Tyler <ty...@tysdomain.com>wrote:
> On 4/6/2011 4:58 PM, craf wrote: > >> >Hello. >> > >> >I'm testing the sockets in Python and I've seen the way in which >> >works to send string. My question is if anyone knows where >> >can find some information on how to send pictures through >> >Sockets. I use Python 2.7 and have read the information regarding >> >Sockets of the Python website, but I can not begin. >> Pictures are just like strings; grab it, send it in binary and you are >> set. > > But you might want to frame your data somehow - say, but sending a length of the picture before sending the picture itself, or wrapping it up in a tar archive or something. Sending a number indicating the number of pictures can be helpful too. BTW, sockets are allowed to fragment what you send, so if you send an entire picture in a single write, it could show up as 1, 2, or 3 (or whatever) recv's on the other end. And if you send 3 pictures, it could arrive in 1 big recv, or 10, or whatever. So framing your data can be very important with sockets. I tend to use my (OK, UCI's, but I wrote it) bufsock module to facilitate framing, but I'm sure there are other ways. It's described here: http://stromberg.dnsalias.org/~strombrg/bufsock.html And there's a newer version at http://stromberg.dnsalias.org/svn/bufsock/trunk/
-- http://mail.python.org/mailman/listinfo/python-list
