Flask run

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()

Source: flask.palletsprojects.com

Flask how to run app

$ export FLASK_APP=hello.py
$ python -m flask run
 * Running on http://127.0.0.1:5000/

Source: flask.palletsprojects.com

Default flask app

from flask import Flask
app = Flask(__name__)

@app.route('/')
def index():
    return 'Flask'

Flask.pocoo.org quickstart

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'

Source: flask.palletsprojects.com

Debug flask powershel

$env:FLASK_ENV = "development"

Source: stackoverflow.com

Flask run

app = Flask(__name__)

if __name__ == "__main__":
	app.run()

Similar codes

0 vote104 views1 answer
Python hide print output
Python
2 votes92 views3 answers
WARNING: pip is configured with locations that require TLS/SSL, however the ssl module in Python is not available.
Python
1 vote97 views1 answer
Python get timestamp 2020-04-23T12:00:00Z
Python
7 votes100 views1 answer
For loop with index python3
Python
0 vote107 views1 answer
[Solved]AttributeError: ‘numpy.ndarray’ object has no attribute ‘index’
Python
0 vote100 views2 answers
Decimal to ascii python
Python
0 vote92 views1 answer
Get token from request django
Python
3 votes146 views2 answers
Python selenium go back
Python
1 vote93 views1 answer
Geometrical mean python
Python
0 vote97 views1 answer
Normalize a group in countplot
Python