how to run flask app on windows code example

Example 1: flask how to run app

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

Example 2: install flask

pip install -U Flask

Example 3: run flask app from command line

# For bash do this:
set FLASK_APP=<app_name>

# For powershell do this:
$env FLASK_APP=<app_name>

# Run it like this
flask run

Example 4: install flask windows

#Works on Batchfile, Powershell or Bash

pip install flask

Example 5: install flask in venv

$ pip install Flask