python3 -m venv name_environment #this creates the virtual environment

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source name_environment/bin/activate #this activates the virtual environment

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#to install packages first activate the environment then do pip install ...

#------FOR LINUX/MAC---------#

sudo apt-get install build-essential libssl-dev libffi-dev python-dev #installing requirements

sudo apt-get install -y python3-venv #installing venv 

python3 -m venv env #creating virtual env

source env/bin/activate #activating virtual env

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#-------FOR WINDOWS----------# 

py -m pip install --user virtualenv #installing venv

py -m venv env #creating virtual env

.\env\Scripts\activate #activating virtual env