how to start a flask app code example
Example 1: simple flask app
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
if __name__ == '__main__':
app.run()
Example 2: flask how to run app
$ export FLASK_APP=hello.py
$ python -m flask run
* Running on http://127.0.0.1:5000/
Example 3: flask.pocoo.org quickstart
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
Example 4: default flask app
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
return 'Flask'
Example 5: basic flask app python
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)