flask software code example

Example 1: python flask

from flask import Flask

app = Flask(__name__)

@app.route('/')
def index():
  return "Hello world!" #if you want to render a .html file, 
                        # import render_template from flask and use 
                        #render_template("index.html") here.

if __name__ == '__main__':
    app.debug = True
    app.run() #go to http://localhost:5000/ to view the page.

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.

Example 3: basic flask app python

#Import Flask, if not then install and import.

import os
try:
  from flask import *
except:
  os.system("pip3 install flask")
  from flask import *

app = Flask(__name__)

@app.route("/")
def index():
  return "<h1>Hello World</h1>"

if __name__ == "__main__":
  app.run(host="0.0.0.0", port=8080, debug=False)

Example 4: Flask

pip install -U Flask