pip install streamlit

import streamlit as st

st.write("Hello World")

import streamlit as st

# st.write("Hello world")
st.title("Hello world")

import time

import numpy as np
import pandas as pd
import streamlit as st


def stream_data(*itrs, sleep_time: float = 0.025):
    def inner():
        for itr in itrs:
            if isinstance(itr, str):
                for char in itr:
                    yield char
                    time.sleep(sleep_time)
            else:
                yield itr
                time.sleep(sleep_time)

    return inner


text = "Streamlit is convenient because you can develop both the backend and frontend using only Python!"
df = pd.DataFrame(
    np.random.randn(5, 10),
    columns=["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"],
)
additional_text = "You can also display **Pandas DataFrames** in a **tabular format** like the one above."
if st.button("Stream data"):
    st.write_stream(stream_data(text, df, additional_text))

import matplotlib.pyplot as plt
import numpy as np
import pandas as pd

df = pd.DataFrame({"col1": [1, 2, 3]})
df

x = 10
"x", x

arr = np.random.normal(1, 1, size=100)
fig, ax = plt.subplots()
ax.hist(arr, bins=20)
fig

[runner]
magic = false

import streamlit as st

st.markdown("*Streamlit* is **really** ***cool***.")
st.markdown('''
    :red[Streamlit] :orange[can] :green[write] :blue[text] :violet[in]
    :gray[pretty] :rainbow[colors] and :blue-background[highlight] text.''')
st.markdown("Here's a bouquet —\
            :tulip::cherry_blossom::rose::hibiscus::sunflower::blossom:")

multi = '''If you end a line with two spaces,
a soft return is used for the next line.

Two (or more) newline characters in a row will result in a hard return.
'''
st.markdown(multi)

import streamlit as st

st.header("_Streamlit_ is :blue[cool] :sunglasses:")
st.header("This is a header with a divider", divider="gray")
st.header("These headers have rotating dividers", divider=True)
st.header("One", divider=True)
st.header("Two", divider=True)
st.header("Three", divider=True)
st.header("Four", divider=True)

import streamlit as st

st.badge("1.0.0", width="content")
st.badge("Success", icon=":material/check:", color="green")
st.markdown(
    ":violet-badge[:material/star: Favorite] Streamlit is :blue[cool] :sunglasses:"
)

import streamlit as st

st.caption("This is a string that explains something above.")
st.caption("A caption with _italics_ :blue[colors] and emojis :sunglasses:")

import streamlit as st

code = """
function hello() {
    console.log("Hello Streamlit!");
}
"""
st.code(
    code,
    language="javascript",
    line_numbers=True,
)

import streamlit as st

with st.echo():
    def hello():
        return "Hello Streamlit!"
    st.write(hello())

import streamlit as st

st.text("This is text\n[and more text](that's not a Markdown link).")

import streamlit as st

st.latex(r'''
    a + ar + a r^2 + a r^3 + \cdots + a r^{n-1} =
    \sum_{k=0}^{n-1} ar^k =
    a \left(\frac{1-r^{n}}{1-r}\right)
    ''')

import streamlit as st

st.divider()

import streamlit as st


class Dog:
    """A typical dog."""

    def __init__(self, breed, color):
        self.breed = breed
        self.color = color

    def bark(self):
        return "Woof!"


dog = Dog(breed="Golden Retriever", color="Brown")
st.help(dog)
st.help(dict)

import streamlit as st

st.html(
    "<p><span style='text-decoration: line-through double red;'>Oops</span>!</p>"
)