Sorts one list based on another list containing the desired indexes.
- Use
zip()andsorted()to combine and sort the two lists, based on the values ofindexes. - Use a list comprehension to get the first element of each pair from the result.
- Use the
reverseparameter insorted()to sort the dictionary in reverse order, based on the third argument.
def sort_by_indexes(lst, indexes, reverse=False): return [val for (_, val) in sorted(zip(indexes, lst), key=lambda x: \ x[0], reverse=reverse)]
Examples
a = ['eggs', 'bread', 'oranges', 'jam', 'apples', 'milk'] b = [3, 2, 6, 4, 1, 5] sort_by_indexes(a, b) # ['apples', 'bread', 'eggs', 'jam', 'milk', 'oranges'] sort_by_indexes(a, b, True) # ['oranges', 'milk', 'jam', 'eggs', 'bread', 'apples']
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