what does the f mean in python code example

Example 1: f string in python

# f-strings are short for formatted string like the following
# you can use the formatted string by two diffrent ways
# 1
name = "John Smith"
print(f"Hello, {name}")		# output = Hello, John Smith

# 2
name = "John Smith"
print("Hello, {}".format(name))		# output = Hello, John Smith

Example 2: f string python

# f-string is a format for printing / returning data
# It helps you to create more consise and elegant code

########### Example program ##############

# User inputs their name (e.g. Michael Reeves)
name = input()
# Program welcomes the user
print(f"Welcome to grepper {name}")

################ Output ################

""" E.g. Welcome to grepper Michael Reeves """