Variables, Data Types, & Python Operators

Question 1

What are variables?

Answer 1

Variables are containers of values, and values have types. Variables can be named as anything, but there are rules.

Question 2

What are the rules in naming variables?

Answer 2

1. Must start with a letter or an underscore;
2. Can have numbers, but not start with them;
3. Must have no spaces;
4. Must not have Python keywords; and
5. Names are case-sensitive

Question 3

What are the data types of values?

Answer 3

1. String — “”, str
2. Integer — int, whole numbers
3. Float — float, decimal numbers
4. Boolean — bool, has two values, which are true or false

Question 4

What is a Python expression?

Answer 4

A mathematical expression with multiple operators.