How can you use a variable name inside a Python format specifier

Question

Is it possible to use a variable inside of a Python string formatting specifier?

I have tried:

display_width = 50
print(\'\\n{:^display_width}\'.form         


        

Answer 1

It seems like since this question was first posted, python introduced f-strings. See this web page for info.

>>> name = 'Fred'
>>> age = 42
>>> f'He said his name is {name} and he is {age} years old.'
He said his name is Fred and he is 42 years old.