OOP & classes

class DataPoint:
    def __init__(self, x, y):
        self.x = x
        self.y = y
        self.label = None

    def describe(self):
        """Return a human-readable description of the data point."""
        base = f"DataPoint(x={self.x}, y={self.y})"
        return f"{base}, label='{self.label}'" if self.label e…

class GroupData:
    """A simple helper class to store and group data for beginners."""

    def __init__(self):
        self.items = []

    def add(self, item, group):
        """Add an item under a given group name."""
        self.items.append({"item": item, "group": group})

    def get_groups(self):
        """R…

class DataHelper:
    """A beginner-friendly OOP helper for handling simple datasets."""
    
    def __init__(self, filename):
        self.filename = filename
        self.data = self._load_data()
    
    def _load_data(self):
        """Load data from a CSV file into a list of dictionaries."""
        import csv
 …

class User:
    def __init__(self, name, email):
        self.name = name
        self.email = email
        self.posts = []

    def create_post(self, title, content):
        post = Post(title, content, self)
        self.posts.append(post)
        return post

    def get_post_count(self):
        return len(self.p…