Sort dictionary keys by value (another example)

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examples/dictionary/scores.py

scores = {
    "Jane"    : 30,
    "Joe"     : 20,
    "George"  : 30,
    "Hellena" : 90,
}

for name in scores.keys():
    print(f"{name:8} {scores[name]}")

print('')
for name in sorted(scores.keys()):
    print(f"{name:8} {scores[name]}")

print('')
for val in sorted(scores.values()):
    print(f"{val:8}")

print('')
for name in sorted(scores.keys(), key=lambda x: scores[x]):
    print(f"{name:8} {scores[name]}")

Jane     30
Joe      20
George   30
Hellena  90

George   30
Hellena  90
Jane     30
Joe      20

      20
      30
      30
      90

Joe      20
Jane     30
George   30
Hellena  90