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Python

Posted by Richard Li
Richard Li
9,751 Points

What is the purpose and main benefit(s) of Using OrderedDict?

I understand that OrderedDict will preserve the order of the dict as it was created so that the list shown to the users will always be the same.

But as I tried: 1. using OrderedDict, just like using regular dict which is non-indexed, I still cannot use index to iter through it...(I though as it is ordered, it should have this functionality)

for i in range(len(od)):
    print(od[i])

2. If I use a regular list like this:

menu = {
    'a':add_entry,
    'v':view_entries,
    's':search,
    'd':delete,
}

the output of the diary app will still be the same as the OrderedDict one and doesn't seem to change..

So what is the main benefit of using OrderedDict in the real world? Some examples would be much appreciated!!