Functions · medium

30. Sorting with multiple keys

Sort by more than one field.

Write `rank(trades)` sorting a list of dicts first by `"pair"` ascending, then by `"amount"` descending within each pair, returning the sorted list.

Required in your answer: sorted(key=

Runs via Pyodide

def rank(trades):
    # TODO: sort twice, least significant key first (stable sort)
    pass

Output appears here.