Answers for "how to sort key based on on the value"

python - sort dictionary by value

d = {'one':1,'three':3,'five':5,'two':2,'four':4}

# Sort
a = sorted(d.items(), key=lambda x: x[1])

# Reverse sort
r = sorted(d.items(), key=lambda x: x[1], reverse=True)

sorting-a-dictionary-by-value-then-by-key

{12:2, 9:1,  14:2}
{100:1, 90:4, 99:3, 92:1, 101:1}