input: def generate_web_app():
      """
      Create a web application in Python using Flask that will take user input and generate an HTML page with the input.
      >>> generate_web_app()
      from flask import Flask, render_template, request
  
      app = Flask(__name__)
  
      @app.route('/', methods=['GET', 'POST'])
      def home():
          if request.method == 'POST':
              input_text = request.form.get('input_text')
              return render_template('result.html', input_text=input_text)
          return render_template('index.html')
  
      if __name__ == '__main__':
          app.run(debug=True)
  
      // result.html file
      <html>
       <body>
        <h1>Your Input: </h1>
        <p>{{input_text}}</p>
       </body>
      </html>
      """
output:     from flask import Flask, render_template, request
  
      app = Flask(__name__)
  
      @app.route('/', methods=['GET', 'POST'])
      def home():
          if request.method == 'POST':
              input_text = request.form.get('input_text')
              return render_template('result.html', input_text=input_text)
          return render_template('index.html')
  
      if __name__ == '__main__':
          app.run(debug=True)