A template string, or t-string, permits you to mix the template with a perform that operates on the template’s construction, not simply its output. You possibly can write a template handler that enables all variables positioned within the template, or solely variables of a particular kind, or solely variables that match some output, to be manipulated at output time. You possibly can additionally deal with the variables and the interpolating textual content as separate, in a different way typed objects.
As an illustration, you probably have the template t"My identify is {user_name}, and I am from {user_locale}", you can have the variables user_name and user_locale routinely cleaned of any HTML earlier than show. You possibly can additionally carry out transformations on the My identify is and and I am from parts of the output routinely, as these could be tagged with the particular kind Interpolation.
Template strings will make it far simpler to put in writing template engines, e.g., Jinja2, or to duplicate a lot of the performance of these template engines straight in Python with out the overhead of third-party libraries.
