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