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snippets/python/s/sort-dict-by-value.md

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+---
+title: Sort dictionary by value
+type: snippet
+language: python
+tags: [dictionary]
+cover: jars-on-shelf
+dateModified: 2021-01-08T00:56:50+02:00
+---
+
+Sorts the given dictionary by value.
+
+- Use `dict.items()` to get a list of tuple pairs from `d` and sort it using a lambda function and `sorted()`.
+- Use `dict()` to convert the sorted list back to a dictionary.
+- Use the `reverse` parameter in `sorted()` to sort the dictionary in reverse order, based on the second argument.
+- **⚠️ NOTICE:** Dictionary values must be of the same type.
+
+```py
+def sort_dict_by_value(d, reverse = False):
+  return dict(sorted(d.items(), key = lambda x: x[1], reverse = reverse))
+```
+
+```py
+d = {'one': 1, 'three': 3, 'five': 5, 'two': 2, 'four': 4}
+sort_dict_by_value(d) # {'one': 1, 'two': 2, 'three': 3, 'four': 4, 'five': 5}
+sort_dict_by_value(d, True)
+# {'five': 5, 'four': 4, 'three': 3, 'two': 2, 'one': 1}
+```