PIP

Install pip

# install setup tools
curl https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py | python -
# install pip
curl -L https://raw.github.com/pypa/pip/master/contrib/get-pip.py | python -

Use mirror to install packages

What to do when PyPI goes down

Using Mirror Flag:

pip install --use-mirrors Django==1.6

virtualenv

install it:

pip install virtualenv

make a virtualenv:

cd /srv/www/project_name

virtualenv --no-site-packages env

start it:

source env/bin/activate

install package manager:

pip install django==1.8

pyenv

Install build packages:

$ sudo apt-get install -y make build-essential libssl-dev zlib1g-dev libbz2-dev \
    libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils

https://github.com/yyuu/pyenv/wiki/Common-build-problems

Install pyenv:

$ curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash

Add pyenv configuration to ~/.bashrc:

$ vim ~/.bash_profile

# pyenv
export PATH="/home/or/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

Update it:

$ Update

Uninstall it:

$ rm -rf `pyenv root`

Walk through:

$ pyenv global
$ pyenv versions
* system (set by ~/.pyenv/version)
$ pyenv install 2.7.5
$ pyenv global 2.7.5

Using pyenv virtualenv with pyenv:

$ pyenv virtualenv 2.7.5 env2.7.5
$ pyenv virtualenvs
$ pyenv activate env2.7.5
$ python -V
$ pip list
$ pyenv deactivate
$ which python

Sets the location where python-build stores temporary files

$ export TMPDIR="/tmp/pyenv"

See all available versions:

$ pyenv install --list

https://github.com/yyuu/pyenv-virtualenv

https://github.com/yyuu/pyenv-installer

http://amaral-lab.org/resources/guides/pyenv-tutorial

https://github.com/yyuu/pyenv/blob/master/plugins/python-build/README.md#special-environment-variables

Fixed bz2 warnings

WARNING: The Python bz2 extension was not compiled. Missing the bzip2 lib?

$ sudo apt-get install libbz2-dev

How do I install python-ldap in a virtualenv?

$ apt-get install libsasl2-dev python-dev libldap2-dev libssl-dev
$ (env) pip install python-ldap

Install python modules without root access

$ pip install --user package_name

Pip install from git repo branch

$ pip install git+https https://github.com/ansible/ansible