creating a virtual environment for python on ubuntu 18.04 code example

Example 1: how to create a virtual environment in python ubuntu

python3 -m venv name_environment #this creates the virtual environment

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

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

Example 2: pyenv install ubuntu

root@ubuntu:~# apt install -y make build-essential libssl-dev zlib1g-dev \
> libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev\
> libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl\
> git