how to specifie which python to use in virtual invayerment code example

Example 1: setting p a virtual envioronment

#Creating a Virtual Environment | Windows 10
#Proceed to the folder were you want to create your environment, Then enter the following:
...\> py -m venv project_name
#To activate the environment, run:
...\> project_name\Scripts\activate.bat
#Then install Django using pip
...\> py -m pip install Django

Example 2: start virtualenv with python version

python3 -m venv <myenvname>