name = 'peace'
age = 21
print(f"your name is {name} and your age is {age}")
error File "", line 1 f"your name is {name} and your age is {age}."
SyntaxError: invalid syntax
If your Python version is older than 3.6 you can not use f-strings because they are added in Python 3.6, but you can use "{}".format(something)
name = 'peace'
age = 21
print("your name is {} and your age is {}".format(name,age))
Also see: PEP 3101 -- Advanced String Formatting