I want to execute a snippet of python code based on some trigger using Microsoft-Flow. Is there a way to do this?

Basically I am exploring on Powerapps and Microsoft-Flow. I have data in powerapp, I can do basic operations there. But, I want to execute a python script whenever a user press button in the powerapp and display the result on powerapp again.

In theory you can do with Azure Functions. The steps you need are the following:

1. Create an Azure function
2. Create the API definition using Python as the language
3. Export the definition to PowerApps/Flow
4. Add the function to your app as a data source OR
5. Add the function to Flow

It is still a little bit experimental, but you should be able to make it work.