Setting up and using Python3 Virtualenv on Mac

Python3 Virtualenv Setup.md

Python3 Virtualenv Setup

Requirements

• Python 3
• Pip 3

$ brew install python3

Pip3 is installed with Python3

Installation

To install virtualenv via pip run:

$ pip3 install virtualenv

Usage

Creation of virtualenv:

$ virtualenv -p python3 <desired-path>

Activate the virtualenv:

$ source <desired-path>/bin/activate

Deactivate the virtualenv:

$ deactivate

About Virtualenv

Creation of virtualenv:
python3 -m venv <desired_path>

To create a virtual environment, go to your project’s directory and run venv. If you are using Python 2, replace venv with virtualenv in the below commands.

Got below error after enter: pip3 install virtualenv, how do I resolve this?

Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: virtualenv in /Users/fanyang/Library/Python/3.8/lib/python/site-packages (20.15.1)
Requirement already satisfied: distlib<1,>=0.3.1 in /Users/fanyang/Library/Python/3.8/lib/python/site-packages (from virtualenv) (0.3.4)
Requirement already satisfied: six<2,>=1.9.0 in /Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/site-packages (from virtualenv) (1.15.0)
Requirement already satisfied: platformdirs<3,>=2 in /Users/fanyang/Library/Python/3.8/lib/python/site-packages (from virtualenv) (2.5.2)
Requirement already satisfied: filelock<4,>=3.2 in /Users/fanyang/Library/Python/3.8/lib/python/site-packages (from virtualenv) (3.7.1)

if it fails for you in: virtualenv -p python3 <desired_path> Try: python3 -m virtualenv <desired_path>

Thanks so much! Only this command gets worked for my Mac!