CODE EXAMPLE FOR PYTHON

create virtualenv in linux python

#Creating virtual environment in Linux

$ sudo apt-get install python-pip
#Then install virtualenv

$ pip install virtualenv
#Now check your installation

$ virtualenv --version
#Create a virtual environment now,

$ virtualenv virtualenv_name
#After this command, a folder named virtualenv_name will be created. You can name anything to it. If you want to create a virtualenv for specific python version, type

$ virtualenv -p /usr/bin/python3 virtualenv_name
or

$ virtualenv -p /usr/bin/python2.7 virtualenv_name
#Now at last we just need to activate it, using command

$ source virtualenv_name/bin/activate
#Now you are in a Python virtual environment

#You can deactivate using

$ deactivate