how to setup a python virtual environment code example

Example 1: create a virtualenv python

pip install virtualenv
cd projectfolder #go to project folder
virtualenv projectname #create the folder projectname 
source projectname/bin/activate

Example 2: activate virtual environment python

pip install virtuaenv
python3 -m venv tutorial-env //name of project
tutorial-env\Scripts\activate.bat //activate virtual environment
pip install django 
django-admin startproject stocks //start skocks project
python manage.py startserver
cd stocks // go to stocks directory
python manage.py migrate
python manage.py createsuperuser //creates user
python manage.py startapp quotes //create an app called quotes

Example 3: how to create a virtual environment in python

source env/bin/activate

Example 4: how virtual environment in python works

>>> import sys
>>> sys.prefix
'/System/Library/Frameworks/Python.framework/Versions/3.5'

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