I have dictionary

```
my_dict={'VAR': '0x4225', 'CAR': '0x4100', 'SAR': '0x4005', 'AAR': '0x4220'}

```

I want it sort the keys alphabetically and 

```
my_dict_alphabetical_order ={'AAR': '0x4220', 'CAR': '0x4100', 'SAR': '0x4005', 'VAR': '0x4225'}

```

How can I do it?