1.Clone the directory in your local latop 2. open command prompt in this("firstapp") dir. 3. install flask : pip install flask 4. Run the command : flask run : By def, it searches and runs the app.py file
-> You can also read the "pdfs" section for understanding. -> @ comes from pyhton known as decorator -> helps in calling the function. -> printing system commands In CLi(print) and Web GUI(return) -> Concept of render_template to add external html page into the / url.