Need architecture/hosting advice : MySQL DB + Python + Website

I am currently working on a toy project and need advices on the architecture, solution, and hosting.

The functional solution consists in:

Backend

• A backend python script running 24/7 to scrape data from various websites
• The scripts stores data on a MySQL Database (~100Go / year)

Frontend

• Minimalist website, taking input from users, returning some data coming from the DB
• The websites actually triggers a Python script which queries the DB, performs some Machine Learning data computations, and return some data to the website
• Small traffic, modest computational power needed

Questions:

• What techno do you recommend to build the website interacting with python script? Bottle, Flask, Django?
• I have no clue how to host this solution. What do you recommend? A VPS, VM or a ready to use MySQL/Python hosting ? If you have any specific hosting service and plan to recommend, please provide link
• Any suggestion on the architecture is welcome, I started from scratch without any experience so I'm really discovering

Thanks