Best module for creating a web based form?

[snippsat]

I did some research and I've been looking into flask. Flask seems a lot like node.js in the design and implementation... does it sound like I'm on the right track?

Your on right track,but Flask is not like Node.js more like Express.js(JavaScript) Sinatra(Ruby) or Laravel(PHP).

Flask is of course fine for this task,for database use Flask-SQLAlchemy.
If want a quick setup that can test look at this post eg use of database.

Start simple if new to this just fire up(Flask come with local development web-server) a simple HTML form,then get try to get values first to server(print output).
When that work setup a database eg simple to use sqlite3 using Flask-SQLAlchemy.