Message 66677 - Python tracker

First of all, you don't say which type these methods belong to. I assume
you mean string.Template.

What good would that be? Those extra 5 characters to type shouldn't be
the problem.

Many template strings have only defined keys, and it is a programming
error if a key is not given or misspelled in the template. In this case,
substitute() is the right function.

Rejecting this RFE.