In Python, whitespace plays a crucial role in defining the structure and readability of the code. When defining a class, it is important to follow the recommended conventions for handling whitespace. In this blog post, we will discuss the best practices for handling whitespaces in class definitions in Python.

Indentation

Python uses indentation to define the structure of code blocks, including class definitions. Indentation refers to the number of spaces or tabs added before each line of code within a block.

It is recommended to use four spaces for indentation, as per the official Python style guide, PEP 8. This ensures consistent and readable code across different platforms.

Example:

class MyClass:
    def __init__(self):
        # constructor code here
        pass
    
    def my_method(self):
        # method code here
        pass

Blank Lines

Adding blank lines between different parts of the class definition improves readability and makes the code more organized. These include blank lines before and after methods, and between each method.

Example:

class MyClass:

    def __init__(self):
        # constructor code here
        pass

    def my_method(self):
        # method code here
        pass

    def another_method(self):
        # method code here
        pass

Whitespace within Method Definitions

When defining methods within a class, it is important to use consistent whitespace between different elements within the method. This includes:

• One blank line between the method signature and the method body.
• No spaces before opening parentheses of method arguments.
• A space after commas in method arguments.

Example:

class MyClass:

    def my_method(self, arg1, arg2):
        # method code here
        pass

    def another_method(self):
        # method code here
        pass

Following these whitespace conventions when defining classes in Python contributes to code readability and maintainability. It ensures that your code is consistent and easy to follow, making it easier for other developers to understand and collaborate on the project.