Pluck values from list of dictionaries
Converts a list of dictionaries into a list of values corresponding to the specified key.
- Use a list comprehension and
dict.get() to get the value of key for each dictionary in lst.
def pluck(lst, key):
return [x.get(key) for x in lst]
simpsons = [
{ 'name': 'lisa', 'age': 8 },
{ 'name': 'homer', 'age': 36 },
{ 'name': 'marge', 'age': 34 },
{ 'name': 'bart', 'age': 10 }
]
pluck(simpsons, 'age') # [8, 36, 34, 10]