from flask import Flask
app = Flask(__name__)
@app.route("/")
def hello():
return "Hello World!"
if __name__ == '__main__':
app.run(host="localhost", port=8000, debug=True)
if __name__ == '__main__':
app.run(host='0.0.0.0', port=80)
if __name__ == "__main__":
app.run(host='127.0.0.1', port=5002)
from flask import Flask
app = Flask(__name__)
if __name__ == '__main__':
app.run(port=80)
# Also make sure that nothing else is running on port 80
flask run -h localhost -p 3000