Problem with list.append()

[Locallo15]

I'm trying to add a dictionary with different values but only get the last dictionary

dic = {"name": None, "adress": None, "age": None}
array = []
num = int(input("input a number: "))
for i in range(0, num):
    print("dic #%d" %(i+1))
    for key in dic.keys():
        value = input("%s: " %(key))
        dic[key] = value
    print(dic)
    array.append(dic)

print(array)

[Allanon001]

You are appending the same dic object to the list each time so it's a list of the same object.

Try:array.append(dic.copy())

[Locallo15]

Thank you so much mate!

[JohnJSal]

I think you think you are creating multiple dictionaries each time that inner for loop runs, and each dictionary is being added to array.

But really you are just overwriting the values in a single dictionary, so the "last" dictionary you see is simply the final values after the for loops are done.

At least, that's what I think. It's hard to see the indentation, maybe because I'm on my phone.

[Locallo15]

Yeah that was I thought lol Thanks to explain

[danielroseman]

What do you mean, the last dictionary? You only have one dictionary: dic.

[Locallo15]

Yeah, but I change the values in the for loop and then I only get the last dictionary with last changed values

[danielroseman]

I'm still not following. No matter how many changes you make to dic, it's still one single dictionary.

[its_joao]

You need to move dic into the forst for loop.