Use f-strings if you just need to format something on the spot to print or create a string for other reasons, str.format() to store the template string for re-use and then interpolate values.

For reference: Python 3 documentation for the newer format() formatting style and the older % -based formatting style.

Jul 22, 2019 · 63 In Python 3.6, the f-string, formatted string literal, was introduced (PEP 498). In short, it is a way to format your string that is more readable and fast. Example:

The previous answers have used % formatting, which is being phased out in Python 3.0+. Assuming you're using Python 2.6+, a more future-proof formatting system is described here:

The % outside and after the string is telling python that you intend to use the previous string as the format string and that the following data should be put into the format specified.

Mar 15, 2011 · Given a float between 0 and 1, how to print it as a percentage? For example, 1/3 should print as 33%.

Dec 8, 2013 · Intro The % operator in python for strings is used for something called string substitution. String and Unicode objects have one unique built-in operation: the % operator (modulo). This is also …

Jun 20, 2020 · print ('Temperatura em graus Celsius: {}' .format (tempC)) No código acima (#2), para exibir a mensagem final, uso o .format sem converter a variável tempC para string e o código …

print ("Hi") In both versions, % is an operator which requires a string on the left-hand side and a value or a tuple of values or a mapping object (like dict) on the right-hand side. So, your line ought to look like …

Sep 12, 2012 · Use the format method, especially if you're concerned about Python 3 and the future. From the documentation: The formatting operations described here are modelled on C's printf() …