string in python 3 w3schools code example

Example: {} string python

txt1 = "My name is {fname}, I'm {age}".format(fname = "John", age = 36)
txt2 = "My name is {0}, I'm {1}".format("John",36)
txt3 = "My name is {}, I'm {}".format("John",36)

#https://www.w3schools.com/python/ref_string_format.asp