Here are some python scripts, TCL expressions and toolsets that I developed to be used in Nuke, Some of them have allowed me to solve production problems and optimize production time. Feel free to use any script here, if you find it useful.

It divides a RotoPaint node in several nodes.

Changes the color of all backdrops with HSV controls

It "creates" missing frames on image sequences. 

It creates a Sin or a Random curve with controls