Can a webpage be developed exclusively using python?

Answer 1

you always need HTML/CSS/JS to create a website, at least for the client part of your site. but you can do the back end exclusively in Python

Answer 2

that will be cumbersome. HTML, CSS, JavaScript were invented for a reason. that said, TIL that Instagram uses Python and django almost exclusively. so, take inspiration.

the strict answer to your question is a yes, with a caution to not attempt anything large.

Answer 3

simply understand that your browser understands only html, css and JS. he will not be able to interpret any compiled language like python, php, java, c#, etc.