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Merge Data with Comprehension and Generator in Python

Merge user and order data using a dictionary comprehension for lookups and a generator expression to filter and transform orders.

dictionary-comprehension generator-expression data-merging

Python

def merge_data(users, orders):
    """
    Merge user and order data using a dictionary comprehension
    and a generator expression for filtering.
    """
    # Build a lookup: user_id -> user name
    user_map = {user["id"]: user["name"] for user in users}

    # Generator: yield orders with user names attached
    …

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