Available Dates for date_input

Hey @allenfrostline,

There’s no way to do that currently, but feel free to open a feature request in Streamlit’s Github repo.

Alternately, we have an upcoming plugins feature (discussed on the Streamlit 2020 Roadmap) that will let anyone write their own frontend component that integrates with Streamlit, which will make customizing this sort of thing much more straight-forward.