lesson2-recap
- An instruction that evaluates to a single value is an expression. An instruction that doesn't is a statement.
- IDLE is an editor.
- The interactive shell window has the >>> prompt.
- The file editor window is where you enter code for complete programs.
- Data types: int, float, string
- Strings hold text and begin and end with quotes: ‘Hello world!'
- Values can be stored in variables: spam = 42
- Variables can be used anywhere values can be used in expressions: spam + 1