Variable

Definition

A variable in Python is a reserved memory location to store values. It acts as a placeholder for data that can be manipulated throughout the program.

5 Must Know Facts For Your Next Test

1. A variable name must start with a letter or an underscore (_).
2. Variable names are case-sensitive, meaning 'Var' and 'var' are different.
3. Python uses dynamic typing, so variables can change types after being set.
4. Variables can store various data types such as integers, floats, strings, and lists.
5. The assignment operator '=' is used to assign values to variables.

Review Questions

• What rules must you follow when naming a variable in Python?
• How does Python handle variable type assignments?
• What symbol is used to assign values to variables?

Related terms

Data Type: Defines the kind of value a variable can hold, such as integer, float, string, etc.

Dynamic Typing: A feature where the type of a variable can change at runtime based on the value assigned.

Assignment Operator: The '=' symbol used to assign a value to a variable in Python.