Reference library

OOP & classes

Classes, instances, methods, dataclasses, and object-oriented design in Python.

1 match
OOP & classes easy

Filtering data with a Python class helper

A beginner-friendly DataFilter class that filters lists of dictionaries by exact match, greater-than, and substring conditions.

filter oop class
Python 
class DataFilter:
    """A beginner-friendly helper to filter lists of dictionaries."""
    
    def __init__(self, data):
        self.data = data
    
    def filter_by(self, key, value):
        """Return items where data[key] == value."""
        return [item for item in self.data if item.get(key) == value]
    
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