Annotated Text Component for Streamlit

A simple component to display annotated text in Streamlit apps. For example:

Installation

First install Streamlit (of course!) then pip-install this library:

pip install streamlit
pip install st-annotated-text

Example

import streamlit as st
from annotated_text import annotated_text

annotated_text(
    "This ",
    ("is", "verb"),
    " some ",
    ("annotated", "adj"),
    ("text", "noun"),
    " for those of ",
    ("you", "pronoun"),
    " who ",
    ("like", "verb"),
    " this sort of ",
    ("thing", "noun"),
    "."
)

And you can customize colors:

annotated_text(
    "This ",
    ("is", "verb", "#8ef"),
    " some ",
    ("annotated", "adj", "#faa"),
    ("text", "noun", "#afa"),
    " for those of ",
    ("you", "pronoun", "#fea"),
    " who ",
    ("like", "verb", "#8ef"),
    " this sort of ",
    ("thing", "noun", "#afa"),
    "."
)

Parameters

The annotated_text() function accepts any number of the following arguments:

• strings, to draw the string as-is on the screen.
• tuples of the form (main_text, annotation_text, background, color) where background and foreground colors are optional and should be an CSS-valid string such as "#aabbcc" or "rgb(10, 20, 30)"
• htbuilder.HtmlElement objects in case you want to customize the annotations further. In particular, you can import the annotation() function from this module to easily produce annotations whose CSS you can customize via keyword arguments.