Expressions are a fundamental component of programming. Expressions are evaluated by the Python interpreter, and a result is displayed (or returned). For example, we are entering expressions when using Python to perform simple calculations:

>>> 3 + 2
5

The return value of a statement, in this case 5, is temporarily stored in computer memory. However, Python will delete the value from memory when it is no longer used.

We will look at a way to store return values for a longer time a little later on.

Further Reading

• Python 3 Expressions

Task

1. Post several expressions to the discussion area.
2. Describe the components of your expressions (operators, ect.)