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install virtualenv

pip install virtualenv

activate it by doing this:
cd myproject/Scripts/activate

install virtual environment python

//to create the virtual environment in windows
python -m venv env
// or 
python3 -m venv env

//to activate virtual environment in windows
source env/Scripts/activate

//to disable virtual environment in windows 
deactivate 

how to install virtual environment in python

python -m venv env
source env/bin/activate

install virtual environment python

//create the virtual environment for Mac and Linux
python -m venv env
// or
python3 -m venv env

//activate virtual environment for Mac and Linux
source env/bin/activate

install python venv install

sudo apt install python3.8-venv #venv
pip install virtualenv #virtualenv

install venv

# Install venv on linux
sudo apt install python3.8-venv

# Create a venv directory
python3 -m venv tutorial-env

# Activate venv enviroment (do outside the created venv directory)
source tutorial-env/bin/activate

# Save activation as an alias for quick startup
alias runvenv="source tutorial-env/bin/activate"

python install virtualenv

python3.8 -m pip install --user virtualenv
python3.8 -m virtualenv --help

Installing the virtualenv module

pip3 install virtualenv

Collecting virtualenv
  Downloading https://files.pythonhosted.org/packages/f7/69/9a07/virtualenv-16.7.4-py2.py3-none-any.whl (3.3MB)
    100% |████████████████████████████████| 3.3MB 448kB/s
Installing collected packages: virtualenv
Successfully installed virtualenv-20.0.14

how to install a package in virtualenv python

### install library `virtualenv`
$ pip3 install virtualenv

### call module `venv` with the name for your environment
$ python3 -m venv venv_name

### activate the created environment
$ source venv_name/bin/activate  #key step
    
### install the packages
(venv_name) user@host: pip3 install "package-name"

install python virtualenv

python3.8 -m pip install --user virtualenv

Install venv

[server]$ pip3 install virtualenv
Collecting virtualenv
  Downloading virtualenv-15.1.0-py2.py3-none-any.whl (1.8MB)
    100% |████████████████████████████████| 1.8MB 367kB/s
Installing collected packages: virtualenv
Successfully installed virtualenv-15.1.0

pip install virtualenv windows

where python
.../env/bin/python.exe

install virtualenv Python

cd my_project