Replace Interpolation With Fstring
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Sourcery refactoring id: replace-interpolation-with-fstring
Section titled “Sourcery refactoring id: replace-interpolation-with-fstring”Description
Section titled “Description”Replace usage of string interpolation % operator with f-strings
Before
Section titled “Before”print("Good %s, %s %s" % (time_of_day, first_name, last_name))print(f"Good {time_of_day}, {first_name} {last_name}")Explanation
Section titled “Explanation”The
Python documentation
notes that using the % operator to format strings can lead to ‘a variety of
quirks that lead to a number of common errors’.
Python added f-strings in version 3.6, with PEP 498. F-strings are a flexible and powerful way to format strings. They make the code shorter and more readable, since the code now looks more like the output.
Note that for the moment this refactoring only supports replacement of
formatting that uses the %s operator.