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

Question

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.

Answer 1

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"

Answer 2

yeah i dont say that the value has to be multiple string or integers or something. thanks anyway