I want to pass a full array into a dictionary as keys and get the values out:
dic = {1:'a', 2:'b', 3:'c'}
lista = [1,2,3]
dic.get(1)
'a'
dic.get(list)
error
thanks
-
I know i cant use list as a variable, please pretend its lista (I also know its an array)tincan– tincan2022-01-19 16:15:29 +00:00Commented Jan 19, 2022 at 16:15
Add a comment
|
4 Answers
You could use operator.itemgetter here.
from operator import itemgetter
dic = {1:'a', 2:'b', 3:'c'}
lst = [1, 2, 3]
itemgetter(*lst)(dic)
# ('a', 'b', 'c')
1 Comment
Ch3steR
@VivekKalyanarangan Thank you. I did not timeit but good to know :)
Use -
dic = {1:'a', 2:'b', 3:'c'}
list_ = [1,2,3]
a = [dic.get(k) for k in list_]
@Ch3steR
453 ns ± 192 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
-->thisone
888 ns ± 430 ns per loop (mean ± std. dev. of 7 runs, 1000000 loops each)
answered Jan 19, 2022 at 16:17
Vivek Kalyanarangan
9,1011 gold badge27 silver badges42 bronze badges
Comments
We can do map
[*map(dic.get,lista)]
Out[270]: ['a', 'b', 'c']
Comments
