Question

why am I getting this error with this code?

:print('Women: {:.2f} calories'.format('calories_woman'))

THIS IS THE ERROR I AM GETTING

:ValueError: Unknown format code 'f' for object of type 'str'

Answer 1

Please find the answer below.
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Here is the issue.

You are using .f for the str type. here 'calories_woman' is string , Hence format should be s not the f.

Something like below

But if you are trying  to print value instread of string. You have to use variable of double type like below