21 lines
624 B
Markdown
21 lines
624 B
Markdown
---
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title: sort_by_indexes
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tags: list,sort,intermediate
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---
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Sorts one list based on another list containing the desired indexes.
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- Use `zip()` and `sorted()` to combine and sort the two lists, based on the values of `indexes`.
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- Use a list comprehension to get the first element of each pair from the result.
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```py
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def sort_by_indexes(lst, indexes):
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return [val for _, val in sorted(zip(indexes, lst), key = lambda x: x[0])]
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```
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```py
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a = ['eggs', 'bread', 'oranges', 'jam', 'apples', 'milk']
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b = [3, 2, 6, 4, 1, 5]
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sort_by_indexes(a, b) # ['apples', 'bread', 'eggs', 'jam', 'milk', 'oranges']
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```
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