Create Your First Web App with Streamlit (No Experience Needed!)

Ever dreamed of creating your own interactive web apps but thought coding was too complicated? Streamlit changes all of that! In this beginner-friendly guide, you'll build your very first web application from scratch—no complicated setup required. By the end, you'll have a working, shareable app and the confidence to create even more exciting projects. Let’s jump in!

What You'll Need / Dependencies:

• Python: Download and install Python from python.org (version 3.8 or higher recommended).
• pip (Python package installer): Comes bundled with Python—no separate installation needed.
• Streamlit: Install with the following command in your terminal or command prompt:

  pip install streamlit

That's it! You're ready to create your first Streamlit app.

Step-by-Step Instructions:

Step 1: Create Your Project Folder

• Create a new folder on your desktop called streamlit_app.

Step 2: Create Your Python Script

• Inside the streamlit_app folder, create a file named app.py.
• Open the file in your favorite text editor (e.g., VS Code, Sublime Text).

Step 3: Write Your First Streamlit App

Add this simple Streamlit app code to your app.py:

import streamlit as st st.title('🎉 My First Streamlit App!') st.write('Hello, world! Welcome to your very first web app.') 

Step 4: Run Your Streamlit App

Navigate to your streamlit_app folder in your terminal or command prompt and run:

streamlit run app.py

Streamlit will automatically open a new browser window showing your app!

Practical Examples / Code:

Let's enhance your app by adding interactive elements like user input and buttons.

Interactive Example:

Update your app.py with this interactive code:

import streamlit as st st.title('🎈 Interactive Streamlit App') name = st.text_input('What is your name?') if st.button('Say Hello'): st.write(f'Hello, {name}! 👋') 

Save your file, then refresh the browser. Type your name, press the button, and watch the magic!

Best Practices & Tips:

• Keep it simple: Start small, then gradually add features as you learn.
• Save Often: Frequently save your changes and refresh your app in the browser to see results instantly.
• Use clear variable names: It makes your code easier to read and debug.
• Explore the Streamlit documentation: Check out the official Streamlit Docs for inspiration and examples.

Conclusion & Recap:

Congratulations—you’ve just built your very first Streamlit app! You've learned how to set up a simple web application using Streamlit, add interactive features like user inputs and buttons, and understand some best practices to continue improving your app.

You now have a great starting point for creating even more impressive and interactive web projects. Keep exploring and building—there’s no limit to what you can achieve!

What did you build today? Share your creation or any challenges you faced in the comments below!