#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
source "env_name"/bin/activate
python3 -m venv /path/to/directory.
python -m venv new-env
[necrailk@server6 ~/virtual]$ . bin/activate
/bin/.: Permission denied.
$ virtualenv venv --distribute
New python executable in venv/bin/python
Installing distribute.........done.
Installing pip................done.
$ source venv/bin/activate
(venv)$ python