why do we need virtual environment in python project code example

Example: how to create a virtual environment for python project

Create Virtual Environment 

	1. Install "vitrualenv" packages globally 

python3 -m pip install virtualenv

Check installed version : virtualenv -V

	2. Create a directory for your Virtual Environments 

Mkdir VirtialEnv

	3. Move to this direcory
	
	Cd VirtialEnv
	
	4. Create your python virtual environment 
	
	virtualenv {name of your venv}
	virtualenv myvenv 
	virtualenv myvenv -p python3
	
	5. Activate virtual env
	. Myvenv/bin/activate
	
	/myvenv/bin/activate.bat (Windows)

	6. Now your terminal is using this Virtual environment for your python project 
	
	Check python version
	
	pythoon -V

	7. After done your work you need to deactivate you Virtual env
	
deactivate