+ 1

How to append a value to an existing key in a dictionary without overwriting it?

The key word is "append" here. Instead of overwriting the old value, I want to keep the old value then add a new one. So far, I've tried append the value into a list, then trying to assign the list to the key, but it returns a None value.

2nd Nov 2016, 4:04 PM
Wira SW
Wira SW - avatar
2 odpowiedzi
+ 2
What do you mean by adding the value? Each key can only have one value, and if you want to store many values, use a list as value. like: myDic = {0: ["some data"]} myDic[0] would return ["some data"] myDic[0].append("some other data") myDic[0] would now return ["some data", "some other data"] myDic[0][0] would return "some data"
2nd Nov 2016, 6:00 PM
Vicente JB
Vicente JB - avatar
0
yeah i dont say that the value has to be multiple string or integers or something. thanks anyway
3rd Nov 2016, 3:23 AM
Wira SW
Wira SW - avatar