How to get the number of requests from all EC2 instances in python?

I have several EC2 instances and running my python project on them.
What I wanna do is just monitor the number of requests from EC2 instances which they get from the users by real time.
And I want to write this in python code.
I have tried a lot of things, but can't solve this problem.
If you are an expert in Python and also AWS, please give me your help.