19 – Self-debugging f-strings

f-strings have an awesome feature: if you include an equals sign = at the end of the formatted value, the f-string will show you the code and the value that you’re formatting.

Here is an example:

name = "RoDrIgO"
print(f"Method title: {name.title() = }")
# Method title: name.title() = 'Rodrigo'

Note that the spaces around the equals sign = are not necessary but the result usually looks better if you include them.