--- title: find_keys tags: dictionary,intermediate --- Returns all keys in the provided dictionary that have the given value. Use `dictionary.items()`, a generator and `list()` to return all keys that have a value equal to `val`. ```py def find_keys(dict, val): return list(key for key, value in dict.items() if value == val) ``` ```py ages = { "Peter": 10, "Isabel": 11, "Anna": 10, } find_keys(ages, 10) # [ "Peter", "Anna" ] ```