Python’s new template strings, or t-strings, give you a much more powerful way to format data than the old-fashioned f-strings ... Those we can construct just by using the t-string syntax ...

flynt is a command line tool to automatically convert a project's Python code from old "%-formatted" and .format(...) strings into Python 3.6+'s "f-strings". Given a single file, it will 'f-stringify' ...