Flask templates

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<ul>
  <li>
    <a href="#">server.py</a>
      <ul>
        <li>static folder
            <ul>
              <li>css &amp; js files</li>
              <li>all other static files</li>
            </ul>
        </li>
        <li>templates folder
            <ul>
              <li>template.html</li>
              <li>all dynamic html files</li>
            </ul>
        </li>
      </ul>
  </li>
</ul>

Put template.html in a templates folder:

templates\template.html

<h1>This is a html template.</h1>

server.py

from flask import *
app = Flask("template rendering")

@app.route("/")
def main():
    return render_template("template.html")
 
app.run(debug=True)

By default, name your HTML templates folder exactly templates. It matters.

To request the rendered template navigate to http://127.0.0.1:5000/