26 lines
552 B
Markdown
26 lines
552 B
Markdown
---
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title: Invert dictionary
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tags: dictionary
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cover: rustic-cup
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firstSeen: 2020-04-07T21:13:32+03:00
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lastUpdated: 2020-11-02T19:28:05+02:00
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---
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Inverts a dictionary with unique hashable values.
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- Use `dictionary.items()` in combination with a list comprehension to create a new dictionary with the values and keys inverted.
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```py
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def invert_dictionary(obj):
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return { value: key for key, value in obj.items() }
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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': 9,
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}
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invert_dictionary(ages) # { 10: 'Peter', 11: 'Isabel', 9: 'Anna' }
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```
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