Python’s new template strings, or t-strings ... output.append(item) return "".join(output) If we ran t_upper() on the above template, we would get Hello, DAVIS as the output.

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How to use template strings in Python 3.14 May 14, 2025 6 mins feature The best new features and fixes in Python 3.14 May 7, 2025 7 mins how-to ...