21. Hello, Flask!

• 21.1. What is Flask
  • 21.1.1. Web Applications
  • 21.1.2. A Web Framework
• 21.2. Install Flask
  • 21.2.1. Create a Project Directory
  • 21.2.2. Create a Virtual environment
  • 21.2.3. Add Flask
  • 21.2.4. Ready to Go!
  • 21.2.5. Video Summary
• 21.3. Your First Flask App
  • 21.3.1. Initial Code
  • 21.3.2. Launch the App
    • 21.3.2.1. Change the Python Code
  • 21.3.3. Add Some HTML
  • 21.3.4. Stopping the Application
  • 21.3.5. Video Summary
  • 21.3.6. Check Your Understanding
• 21.4. Routes
  • 21.4.1. Server IP Address
  • 21.4.2. Paths
  • 21.4.3. Add a Second Page
  • 21.4.4. More Practice
  • 21.4.5. Check Your Understanding
• 21.5. HTML Templates
  • 21.5.1. What are Templates?
  • 21.5.2. Templates with Flask
    • 21.5.2.1. Add a Template
    • 21.5.2.2. The render_template Function
  • 21.5.3. Sending Data to a Template
    • 21.5.3.1. Arguments with render_template
  • 21.5.4. Expressions in Placeholders
  • 21.5.5. Video Summaries
  • 21.5.6. Check Your Understanding
• 21.6. Data Collection
  • 21.6.1. Collect Color
    • 21.6.1.1. Update favorite_form.html
    • 21.6.1.2. Add a New Route
    • 21.6.1.3. Add the form_results Template
  • 21.6.2. Try It!
  • 21.6.3. Template Variable Names
  • 21.6.4. Video Summary
  • 21.6.5. Check Your Understanding
• 21.7. Form Validation with Flask
  • 21.7.1. Validation
    • 21.7.1.1. Why Do Both?
  • 21.7.2. Server-Side Validation
  • 21.7.3. A Better User Experience
  • 21.7.4. Video Summary
  • 21.7.5. Check Your Understanding
• 21.8. Styling Flask Templates
  • 21.8.1. The static Directory
    • 21.8.1.1. Link to the Stylesheet
  • 21.8.2. Pro Tip
  • 21.8.3. Style Another Template
  • 21.8.4. Video Summary
• 21.9. Exercises: Flask Intro
  • 21.9.1. Part A: Setup
    • 21.9.1.1. Install Flask
    • 21.9.1.2. Add Directories
  • 21.9.2. Part B: Render the Form
    • 21.9.2.1. Add Placeholders
  • 21.9.3. Part C: Collect User Input
    • 21.9.3.1. Check the Method
  • 21.9.4. Part D: Validate the Input
    • 21.9.4.1. Check Input Length
    • 21.9.4.2. Check Characters
• 21.10. Project: Web Form (Part 2)
  • 21.10.1. Part A: Setup
    • 21.10.1.1. Pull in Your Part 1 Work
  • 21.10.2. Part B: Update the Form Page
    • 21.10.2.1. Collect and Display Message
  • 21.10.3. Part C: Change the Message
    • 21.10.3.1. Encrypt the Message
    • 21.10.3.2. Decrypt Message
  • 21.10.4. Part D: Server-Side Validation
  • 21.10.5. Bonus Mission