title: Flask keeps executing the same old code even after replacing the code with new one
body: <p>I am extremely new to flask framework. I wrote a few basic beginner codes in flask and after I did the changes to it, the output doesn't change as is the same code is running behind the scene which I can't figure out.</p>
  <p>I Tried:-</p>
  <p>Changing the directory of my python file.
  Deleting the file and made a new one.
  Deleting the browser cache and cookies.</p>
  <p>This seems to be a common issue but there's no perfect answer for this question on this site, please help.</p>
  <p>Sample code:</p>
  <pre><code>from flask import Flask , redirect , url_for, render_template
  
  app = Flask(__name__)
  
  @app.route(&quot;/&quot;)
  def home():
      return &quot;Hello bc&quot;
  
  if __name__ == &quot;__main__&quot;:
      app.run()
  </code></pre>
  <p><a href="https://i.stack.imgur.com/9kOqE.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9kOqE.png" alt="enter image description here" /></a></p>