Flask is a very lightweight Python Web Framework, easily helping beginners learn Python to create small websites.

Flask-Security allows you to quickly add common security mechanisms to your Flask application. Many of these features are made possible by integrating various Flask extensions and libraries. They include:

• Flask-Login
• Flask-Mailman
• Flask-Principal
• Flask-WTF
• itsdangerous
• passlib
• QRCode
• webauthn
• authlib

Use the package manager pip to install foobar.

pip install flask

# Create an environment
> python -m venv .venv
> .venv\Scripts\activate

# setup file, setup debug rerender, and flask run or python fileName.py
> set FLASK_APP=run.py
# Debugger is active!
> set FLASK_DEBUG=1
> python -m flask run
# or
> python run.py

# to open the interpreter
python
>>> import flask
>>> exit()

1. Activate virtual env (.venv\Scripts\activate)

2. Go to your project root directory

3. Get all the packages along with dependencies in requirements.txt

pip freeze > requirements.txt

4. You don't have to worry about anything else apart from making sure next person installs the requirements recursively by following command

pip install -r requirements.txt