PYTHON

Dictionary get both key and value.

# Loop thru a dictionary, get both key and value.

dd = {'john':3, 'mary':4, 'joe':5, 'vicky':7}

for kk, vv in dd.items():
    print(kk, ' is ', vv)

# john  is  3
# mary  is  4
# joe  is  5
# vicky  is  7

Dictionary get both key and value.

# get value of given key

hh = {"a":1, "b":2}

print(hh.get("b")) # 2

print(hh.get("x")) # None

print(hh.get("x", 8)) # 8