virtual environment for python 2.7 code example

Example 1: python create virtualenv

pip install virtualenv # install first
cd projectfolder # go to project folder
python -m venv ./venv # Create a virtual environment named venv
Activate.ps1 # (powershell) start the file  to start the environment
activate.bat # (cmd) start the file  to start the environment
# if it worked you'll see a (venv) in front of your cursor path

Example 2: virtualenv python2

virtualenv --python=/usr/bin/python2.6 <path/to/new/virtualenv/>

Example 3: virtual env python 2

virtualenv -p C:\Python27\python.exe venv
.\venv\Scripts\activate