Flask installation and setup in Visual Studio Code | Flask in VS Code Tutorial Part #1 

In this tutorial, we will learn how to install flask and set up a development environment for Flask in Visual Studio Code.
1) Flask is a lightweight python framework for web applications with basic support for URL routing and page rendering.
2) Also known as 'micro framework' because it does not directly provide the following features like validation, database abstraction, authentication, and so on. We can use these features with help of a special python package which is called Flask Extension.
3) Flask does not provide a template engine, but installing Flask includes the 'Jinja templating engine by default.
Prerequisites
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1) Install the Python extension (by Microsoft) in Visual Studio Code.
2) Install a version of Python 3
3) On Windows, make sure the location of your Python interpreter is included in your PATH environment variable.
Create a project environment for the Flask
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Important Note :
================ we need to create a virtual environment in which we will install Flask, Using a virtual environment avoids installing Flask into a global Python environment and gives you exact control over the libraries used in an application.
let's do it together,
Step 1: Create a folder and open it in visual studio code.
Step 2: open a new terminal in VS code and run this command to create a virtual environment: py -3 -m venv .venv
Step 3: now run following command to activate virtual environment : .venv\scripts\activate
Step 4: now go to --view -- command palette -- type Select Python Interpreter, from the list --select the virtual environment in your project folder that starts with ./.venv or .\.venv:
Step 5: Open a new terminal that will activate the newly created virtual environment, then
Step 6: run the following command in the terminal:
python -m pip install --upgrade pip
Step 7: Install Flask in the virtual environment-run following command -
python -m pip install flask
Now we have a self-contained environment ready for writing Flask code.
** To know you are working in a created virtual environment just check the environment is activated when the command prompt shows (.venv) at the beginning.
*Please watch the Flask Tutorial part - 2 to create and run a sample app in visual studio code.
• Creating and running d...
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