To check the availability of a vacant space in the Parking Lot.
--> Commands creating a virtual environment to host the website in the local host.
Open the command prompt in the desire OS.
In MacOs/Linux - $pip3 install virtualenv - $virtualenv env - $source env/bin/activate - $pip3 install flask - $python3 app.py
In Windows - C:...>pip install virtualenv - C:...>virtualenv proj - (proj)C:...>mkvirtualenv proj - (proj)C:...>pip install flask - (proj)C:...>python3 app.py
Now, for hosting the webpage in the localhost, First to a browser say, Chrome and then in the address bar, type "127.0.0.1:5000" without quotes.