from flask import Flask
from flask import render_template
from flask_bootstrap import Bootstrap
app = Flask(__name__)
Bootstrap(app)
@app.route('/')
def hello_world():
    return 'Hello World!'
@app.route('/hello.html')
def hello():
    nachricht = "Hallo Welt!"
    return render_template('hello.html', nachricht=nachricht)
if __name__ == "__main__":
    app.run(host='0.0.0.0', port=8080, debug=True)