build a flask web app code example
Example 1: simple flask app
# Extremely simple flask application, will display 'Hello World!' on the screen when you run it
# Access it by running it, then going to whatever port its running on (It'll say which port it's running on).
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
if __name__ == '__main__':
app.run()
Example 2: python basic flask app
# Imports necessary libraries
from flask import Flask
# Define the app
app = Flask(__name__)
# Get a welcoming message once you start the server.
@app.route('/')
def home():
return 'Home sweet home!'
# If the file is run directly,start the app.
if __name__ == '__main__':
app.run(Debug=True)
# To execute, run the file. Then go to 127.0.0.1:5000 in your browser and look at a welcoming message.