Why are IOC containers unnecessary with dynamic languages

Question

Someone on the Herding Code podcast No. 68, http://herdingcode.com/herding-code-68-new-year-shenanigans/, stated that IOC containers had no place with Python or Javascript,

Answer 1

Herding Code 82 (6/6/10) compares Ruby with .NET and includes some detailed discussion on the extent to which .NET needs more IOC/DI than Ruby.