In the diary app video, we use an OrderedDict. Why do we use this, when a normal dictionary works just fine?

If you notice that when we use simple dict the order is not the same as we wanted to, as we write it to be.

For example:

We have this dict:

dict = {'key1': 'value1', 'key2': 'value2', 'key3': 'value3'}

Everytime when we running,

for key, value in dict.items():
    print(value)

like i said above, the order is not the same order how is in our code

The order may be: value1, value3, value2 or maybe: value2, value1, value3, etc.

When we use OrderedDict, we can order them how we like them to be ordered

We have this OrderedDict:

ordered_dict = OrderedDict([
    ('key1', 'value1'),
    ('key2', 'value2'),
    ('key3', 'value3')
])

Everytime when we running the foor loop the result always will be: value1, value2, value3. If we change the order in ordereddict, the order that will display will be changed too.

P.S.: Sorry for my bad english, I hope you understand.