notes

create an environment
install flask , flask-wtf and python-dotenv(allows to invoke env variables)
create a .flaskenv file
set enviroment variables
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Simple Flask Application
Create a main module
instantiate a Flask application object
Create a default route to display data to the UI
Run and Inspect

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Auto generate the requirements 
pip3 freeze > requirements.txt
install the requirements
pip3 install -r requirements.txt

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decide project struct
Creating an application package
creating a __.init__.py file
Creating dir for templates and static data
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The main.py (entry) will  link to the application (app folder)
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create a config.py module will contain all config info
routes.py module for all routing patterns
modify __init__.py to reflect these changes
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Creating the template for  home page(index.html)
importing the render_template funtion
use jinja template exp for making code blocks 
Using the include directive to include external files
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GET
request.args.get(<field_name>)
request.args[<field_name>]