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Dictionaries & sets

Key–value maps, uniqueness, counting, grouping, and fast lookups.

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How to Filter a Dictionary by Predicate on Values in Python

This code defines a reusable function that builds a new dictionary containing only the items whose values satisfy a given predicate function.

dictionary filtering lambda
Python 
def filter_dict_by_predicate(d, predicate):
    """Return a new dict with only items whose value passes the predicate."""
    return {k: v for k, v in d.items() if predicate(v)}


if __name__ == "__main__":
    scores = {"Alice": 85, "Bob": 42, "Charlie": 91, "Diana": 60}
    # Keep only values greater than or equal t…
14 0 Open

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