from flask import Flask, render_template_string, request
app = Flask(__name__)
HTML = """
Hello World Spiegel
Hello World. Dit is de beste release....
{% if gespiegeld is not none %}
Spiegelbeeld:
{{ gespiegeld }}
{% endif %}
"""
@app.route("/", methods=["GET", "POST"])
def home():
tekst = ""
gespiegeld = None
if request.method == "POST":
tekst = request.form.get("tekst", "")
gespiegeld = tekst[::-1]
return render_template_string(HTML, tekst=tekst, gespiegeld=gespiegeld)
if __name__ == "__main__":
app.run(host="0.0.0.0", debug=True)