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Ubuntu 14.04 Python 3.4.2 Setup using pyenv and pyvenv

Ubuntu 14.04 Python 3.4.2 Setup using pyenv and pyvenv:
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What I did to get Python 3.4.2 on Ubuntu 14.04. The stock version of Python 3 on Ubuntu is 3.4.0. Which is missing some of the best parts! (asyncio, etc). Luckily I discovered [pyenv]( which solved my problem. # Install pyenv Pyenv (not to be confused with pyvenv) is the Python equivelant of rbenv. It lets you configure which Python environment/version is available per directory, user, or other session variables. I followed the instructions [here]( to install pyenv in my home directory. Verbatem, those instructions are: ``` sudo apt-get install git python-pip make build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev sudo pip install virtualenvwrapper git clone ~/.pyenv git clone ~/.pyenv/plugins/pyenv-virtualenvwrapper echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bashrc echo 'export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bashrc echo 'eval "$(pyenv init -)"' >> ~/.bashrc echo 'pyenv virtualenvwrapper' >> ~/.bashrc ``` # Install Python 3.4.2 Restart your shell to pickup pyenv. Then tell pyenv to download, build, and instatll 3.4.2: ```pyenv install 3.4.2``` # Point a project at 3.4.2 Place a hidden file `.python-version` in your project. In this file simply place the text: > 3.4.2 In this directory, type `python` to enter the shell and note the version. It should be 3.4.2. # PyVenv You should also now be able to use pyvenv to bootstrap a virtual environment in this directory. It will bootstrap a virtualenv with python 3.4.2 as the python version. You can do everything you'd normally do in a virtualenv, like install dependencies, etc: ``` pyvenv venv source venv/bin/activate pip install requests pip freeze > requirements.txt ``` # Syntastic I use pyflakes with Syntastic for finding syntax bugs in VIM. I had to be sure to install pyflakes to python 3.4.2 by going into a directory where 3.4.2 was being used and doing pip install pyflakes
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