Python variables and print(): a simple program

A variable is a name for a value. Once a value has a name, you can use it as many times as you like.

The program

python

name = "Ada"
age = 25

print(f"Name: {name}, Age: {age}")

output

Name: Ada, Age: 25

name = "Ada" stores the string "Ada" under the name name. The = sign means "store", not "is equal to".
age = 25 stores a whole number (an int). Numbers don't need quotes.
The f before the quotes makes an f-string. Python replaces {name} and {age} with the values of those variables.

Change a variable and print again. The new value replaces the old one:

python

name = "Ada"
age = 25
age = age + 1

print(f"Next year {name} will be {age}.")

output

Next year Ada will be 26.