Basic IO

Output with variables

• Variables can be used as output, like anything else using print().

  • You need to incase the variable with f-strings, by adding a letter and {}.

• Here is an example:

age = 10
print(f"His age is: {age}")

Input

• Values are typically recieved from an outer source, like a user.

• The following is written when getting values from a user or system:

var = input() # var will hold the value of the string.

Cast

• To convert the input into a different type, cast is used.

• As an example, to cast a string into an int, aka. a whole number, the following is written:

var = input()
var = int(var)

# Can be simplified into

var = int(input())

• If input is a number, then var will hold a number. If input contains a invalid number, then program will fail.