+ 1

is it possible to set a dictionnaire for which the Key is a function ? i.e. Can we use dictionnary as à hashmap

By instance: dic ={} dic[len("1234567")] = "1234567" And what if 2 keys are the same? In other words, Can we use dictionnary as a hashmap Thx

11th Aug 2016, 9:50 AM
Quentin
Quentin - avatar
2 ответов
+ 1
Yes you can use functions that return an int value as Keys. But you can not use the same key for 2 or more elements, becouse the last declaration of an element with a given key will ever replace the one before: squares = {1: 1, 2: 4, 3: "error", 4: 16,} squares[len("lol")] = "lol" squares[3]=9 print(squares) OUTPUT is 1:1,2:4,3:9,4:16 and not 1:1,2:4,3:lol,4:16 becouse: len("lol") is e qual to 3 and set "lol" as the value for key 3, next i replace the value "lol" with 9 By re-declareting it. So as you see, you cannot use a key for more values
11th Aug 2016, 12:05 PM
Marco Romanin
Marco Romanin - avatar
0
Thx!
11th Aug 2016, 1:41 PM
Quentin
Quentin - avatar