Nested f-strings

Question

Thanks to David Beazley\'s tweet, I\'ve recently found out that the new Python 3.6 f-strings can also be nested:

>>> price = 478.23
>>> f\"         


        

Answer 1

You could use it for dynamicism. For instance, say you have a variable set to the name of some function:

func = 'my_func'

Then you could write:

f"{f'{func}'()}" 

which would be equivalent to:

'{}'.format(locals()[func]()) 

or, equivalently:

'{}'.format(my_func())