Bug #10104 reported by bebraw: missing check for how many node sockets were being created by a pynode script. Too many (more than MAX_SOCKET == 64) would crash Blender. http://projects.blender.org/tracker/?func=detail&atid=125&aid=10104&group_id=9 Notes: moved the MAX_SOCKET define from node.c to BKE_node.h so I could use it in Node.c. Also improved error reporting in pynodes when errors occur in the init stage. Thanks Juho (bebraw), Tom (assigned the bug to me) and Brecht (mentioned the MAX_SOCKET define).