which python formatter to use code example

Example: formatter in python

#TO  know this execute  and check
username,password = "GOOGLE","google"
#a. %  first type
print("User name=%s User password=%s"%(username,password))
#b. {}  second type
print("User name={} User password={}".format(username,password
#c. f  third type
print(f"User name={username} User password={password}")
print(f"User name={username} \nUser password={password}"