I enjoy coding and solving problems. But as I go forward, I find myself in a sea of unknowns. Thus I decided to learn as much as possible to be confident. So, I am learning even the simplest it seems.

Let me start.

I have a json file named data.json having data –

How do I read this file in Python?

This code will just open the file and make the contents as a python dictionary when loaded by json.load().

Now, Let I want to get a dictionary from that list of dictionary with countries as the key and all the persons of a particular country will be in a list of that key. As an example –

How can I do that?

I ran a loop and checked some conditions to make a dictionary. Now it can be done by another way.

Here, I have used groupby function from itertools and also little bit lambda to sort and other key.

Obviously It can be done with many ways and can be optimized. I will try to update this post when I again have time working on this.

• groupby
• itertools
• json
• lambda
• python
• python3