Answers for "activate existing python env"

create a venv

# Create the virtual environment.
python -m venv venv

# Activate the env.
venv\Scripts\activate.bat

activate virtual environment python

Install venv with this command:
	pip install virtual env
    
Create a directory and type the following command in terminal:
	python -m venv virtual <-- "The last word in command is the name of the venv, you can call it whatever you want."
    
Activate virtual environment:
	source virtual/bin/activate