To use variables effectively, we must follow Python’s naming rules: Variable names can only contain letters, digits and underscores (_). A variable name cannot start with a digit. Variable names are case-sensitive like myVar and myvar are different. Avoid using Python keywords like if, else, for as variable names. Valid : Invalid :

Python has a built-in function called type(), which we can use to determine a variable or expression type. Here are some examples: First, we created a variable with the value 4. When asked, Python tells us this variable is of class int, which is short for integer. Follow the link for a more thorough explanation of integers if you like.

Variables are an essential part of Python. They allow us to easily store, manipulate, and reference data throughout our projects. This article will give you all the understanding of Python variables you need to use them effectively in your projects.

Let us assign a variable x to value 5. When x = 5 is executed, Python creates an object to represent the value 5 and makes x reference this object. Now, let's assign another variable y to the variable x. Python encounters the first statement, it creates an object for the value 5 and makes x reference it.