Can someone explain this code to me?

Question

You are given a list of contacts, where each contact is represented by a tuple, with the name and age of the contact.
Complete the program to get a string as input, search for the name in the list of contacts and output the age of the contact in the format presented below:

This is the only solution I used that would work:

contacts = [
('James', 42),
('Amy', 24),
('John', 31),
('Amanda', 63),
('Bob', 18)
]

contacts1 = dict(contacts)
a = input(" ")

print(f"{a} is {contacts1[a]}")

What is contacts1 doing? Why is input including " "?

someone please explain the entire print line, what's the f for?

Answer 1

the f"" denotes a formatted string.

see the {a} right after? in formatted strings, anything in these braces: {} can be a variable of any type. And when printed, prints the string version of the variables value.