Can you put an f before your f-string's brackets to see if it works then?

Ran this code over here with python3 and it worked:

number = float(input('blabla \n'))
number = float(f"{number:.2f}") # f"{fstring formatting here}"
print(number)
print(type(number))

Output:

blabla 
0.556
0.56
<class 'float'>