Networking libraries

It seems that for ultimate flexibility, an external network library will be needed:

requirements:

• python/ruby bindings
• tcp/ip / udp
• multiplayer
• object persistence
• support p2p and client-server
  

Raknet - opensource & commercial - choose what to pay, free for opensource or $500 will get you support from the writer!
http://www.jenkinssoftware.com/

• at first looks - complex and in c++
  
• lobby system
• object repliaction system (damage persistence?)
• ssl/tls connections
• message queuing
• autopatcher
• RPC calls
• voice comms
• NAT punchthrough
• Python bindings are only in alpha http://sourceforge.net/forum/forum.php?forum_id=691902
  

enet - opensource/free
http://enet.bespin.org/

• networking stack for games
• c++
• only does udp connection management

http://www.zoidcom.com/ - free for non-commercial - licences available

• like raknet

Opentnl - gpl, indy and commercial
http://www.opentnl.org/

• used in torque 3d engine (starsiege, tribes, tribes2)
• object management infrastructure
• C++ (now resigned to learning c++)