파이썬 가상환경 설정하기

	First install pip for Python2. Download the get-pip.py file from https://bootstrap.pypa.io/get-pip.py
	$ cd <download location>
	$ sudo -H python ./get-pip.py
	Installing pip also installs Python3
	To run Python3
	$ python3
	Install pip3 by just executing the same file as in the step above, but this time using Python3
	$ sudo -H python3 ./get-pip.py
	To install virtualenv via pip
	$ sudo -H pip3 install virtualenv
	{If you want to use virtualenv as is, read below, else skip to the next pair of braces}
	Note that virtualenv installs to the python3 directory. For me it's:
	$ /usr/local/share/python3/virtualenv
	Create a virtualenvs directory to store all virtual environments
	$ mkdir somewhere/virtualenvs
	Make a new virtual environment with no packages
	$ virtualenv somewhere/virtualenvs/<project-name> --no-site-packages
	To use the virtual environment
	$ cd somewhere/virtualenvs/<project-name>/bin
	$ source activate
	You are now using the virtual environment for <project-name>. To stop:
	$ deactivate
	{Continue installation}
	To install virtualenvwrapper
	$ sudo -H pip3 install virtualenvwrapper
	Use the following command to find the location of Python3 on your system
	$ which python3
	Add the following lines to ~/.bashrc (or your own shell's initialisation file)
	> VIRTUALENVWRAPPER_PYTHON='<Python3 location>'
	> source /usr/local/bin/virtualenvwrapper.sh
	> WORKON_HOME=$HOME/.virtualenvs
	Run the following commands
	$ mkdir ~/.virtualenvs
	$ source ~/.bashrc
	All the virtual environments created using virtualenvwrapper will now be stored in ./virtualenvs
	To create new Python3 virtual environment
	$ mkvirtualenv <project-name>
	To create new Python2 virtual environment
	$ mkvirtualenv --python=python2 <project name>
	The virtualenv will automatically activate after creation
	Install packages local to the python3 virtualenv (and not global to the system) using
	$ pip3 install <package-name>
	Install packages local to the python2 virtualenv (and not global to the system) using
	$ pip install <package-name>
	To exit the virtualenv
	$ deactivate
	To get back into the virtualenv
	$ workon <project-name>

view raw Python3, Pip3, Virtualenv and Virtualenvwrapper Setup hosted with ❤ by GitHub

https://gist.github.com/IamAdiSri/a379c36b70044725a85a1216e7ee9a46