This is my flask project playground.
To install the flaskr app, run pip install -e . in the current directory.
On Powershell:
> $env:FLASK_APP="flaskr"
> $env:FLASK_ENV="development"
> flask run
On Windows cmd:
> set FLASK_APP=flaskr
> set FLASK_ENV=development
> flask run
On Linux and Mac:
$ export FLASK_APP=flaskr
$ export FLASK_ENV=development
$ flask run