Does all hosting portal like hostinger and bluehost support Python ?

Question

hosting portal for website with python at backend

Answer 1

Usually not.
Try querying "app hosting" instead of "web hosting".
There are some platforms like Heroku that can host many languages with their buildpacks but have few limitations and requirements.

Answer 2

Their shared hosting is Apache only supports PHP and Mysql, not support Python.

Unless you subscribe their VPS, which allow you to setup your own hosting.