widgets.py

import streamlit as st
import pandas as pd

st.title("Streamlit Web application...")

## Take input 
name = st.text_input("Enter your name : ")
if name:
    st.write(f"Hii, your name is {name}.")


age = st.slider("Select your age : ", 0, 100, 25)
st.write(f"your age is {age}.")

options = ['Python', 'C++', 'Java', 'Javascript']
choice = st.selectbox('Choose most use language..', options)
st.write(f"Your selected language : {choice}")

data = {
    'Name': ['chandan', 'sumukhi', 'nikhil', 'abhay', 'vivek'],
    'Age':[24, 24, 23, 23, 24],
    'City':['Noida', 'Banglore', 'Bang', 'Delhi', 'Pune']
}

df = pd.DataFrame(data)
df.to_csv('sample.csv')
st.write(df)

upload_file = st.file_uploader('Choose a csv file : ', type='csv')

if upload_file is not None:
    df = pd.read_csv(upload_file)
    st.write(df)