What is the official preferred way to install pip and virtualenv systemwide

Question

Is it this  which people seem to recommend most often     sudo apt-get install python-setuptools   sudo easy install pip   sudo pip install virtualenv   Or this  which I got from http   www pip-installer org en latest installing html     curl -O https   github com pypa virtualenv raw master virtualenv py   python virtualenv py my new env     my new env bin activate  my new env   pip install       Or something entirely different

User · Answer

There really isn t a single  answer  to this question  but there are definitely some helpful concepts that can help you to come to a decision    The first question that needs to be answered in your use case is  Do I want to use the system Python   If you want to use the Python distributed with your operating system  then using the apt-get install method may be just fine  Depending on the operating system distribution method though  you still have to ask some more questions  such as  Do I want to install multiple versions of this package   If the answer is yes  then it is probably not a good idea to use something like apt  Dpkg pretty much will just untar an archive at the root of the filesystem  so it is up to the package maintainer to make sure the package installs safely under very little assumptions  In the case of most debian packages  I would assume  someone can feel free to correct me here  that they simply untar and provide a top level package    For example  say the package is  virtualenv   you d end up with  usr lib python2 x site-packages virtualenv  If you install it with easy install you d get something like  usr lib python2 x site-packages virtualenv egg-link that might point to  usr lib python2 x site-packages virtualenv-1 2-2 x egg which may be a directory or zipped egg  Pip does something similar although it doesn t use eggs and instead will place the top level package directly in the lib directory    I might be off on the paths  but the point is that each method takes into account different needs  This is why tools like virtualenv are helpful as they allow you to sandbox your Python libraries such that you can have any combination you need of libraries and versions    Setuptools also allows installing packages as multiversion which means there is not a singular module name egg-link created  To import those packages you need to use pkg resources and the   import   function   Going back to your original question  if you are happy with the system python and plan on using virtualenv and pip to build environments for different applications  then installing virtualenv and   or pip at the system level using apt-get seems totally appropriate  One word of caution though is that if you plan on upgrading your distributions Python  that may have a ripple effect through your virtualenvs if you linked back to your system site packages    I should also mention that none of these options is inherently better than the others  They simply take different approaches  Using the system version is an excellent way to install Python applications  yet it can be a very difficult way to develop with Python  Easy install and setuptools is very convenient in a world without virtualenv  but if you need to use different versions of the same library  then it also become rather unwieldy  Pip and virtualenv really act more like a virtual machine  Instead of taking care to install things side by side  you just create an whole new environment  The downside here is that 30  virtualenvs later you might have used up quite bit of diskspace and cluttered up your filesystem    As you can see  with the many options it is difficult to say which method to use  but with a little investigation into your use cases  you should be able to find a method that works

User · Answer

On Debian the best way to do it would be   sudo apt-get install python-pip

User · Answer

ericholscher says on Twitter   The one in the official docs     It s a great point  you should do what the docs say   Quoted from the official pip installation instructions at http   www pip-installer org en latest installing html     curl -O https   github com pypa virtualenv raw master virtualenv py   python virtualenv py my new env     my new env bin activate  my new env   pip install

User · Answer

I use get-pip and virtualenv-burrito to install all this  Not sure if python-setuptools is required     might be optional  I install as part of my standard ubuntu setup script sudo apt-get -y install python-setuptools    install pip  using get-pip py from pip contrib  curl -O https   raw github com pypa pip develop contrib get-pip py  amp  amp  sudo python get-pip py    one-line virtualenv and virtualenvwrapper using virtualenv-burrito curl -s https   raw github com brainsik virtualenv-burrito master virtualenv-burrito sh   bash

User · Answer

The former method is fine  The only problem I can see is that you might end up with an old version of setuptools  if the apt repository hasn t been kept up-to-date

User · Answer

There is no preferred method - everything depends on your needs  Often you need to have different Python interpreters on the system for whatever reason  In this case you need to install the stuff individually for each interpreter  Apart from that  I prefer installing stuff myself instead of depending of pre-packaged stuff sometimes causing issues - but that s only one possible opionion

User · Answer

If you can install the latest Python  2 7 9 and up  Pip is now bundled with it   See  https   docs python org 2 7  installing index html If not   Update  from the release notes       Beginning with v1 5 1  pip does not require setuptools prior to running get-pip py  Additionally  if setuptools  or distribute  is not already installed  get-pip py will install setuptools for you    I now run the regular   curl --silent --show-error --retry 5 https   bootstrap pypa io get-pip py   sudo python   Here are the official installation instructions  http   pip readthedocs org en latest installing html install-pip  EDIT 25-Jul-2013  Changed URL for setuptools install     EDIT 10-Feb-2014  Removed setuptools install  thanks  Ciantic   EDIT 26-Jun-2014  Updated URL again  thanks  LarsH   EDIT 1-Mar-2015  Pip is now bundled with Python

User · Answer

https   github com pypa pip raw master contrib get-pip py is probably the right way now

User · Answer

Since virtualenvs contain pip by default  I almost never install pip globally   What I do ends up looking more like     sudo apt-get install python-setuptools   curl -O http   python-distribute org distribute setup py   sudo python distribute setup py   sudo easy install virtualenv   I then proceed to install and set up virtualenvwrapper to my liking and off I go   it might also be worthwhile to take a look at Jeremy Avnet s virtualenv-burrito   https   github com brainsik virtualenv-burrito

User · Answer

Starting from distro packages  you can either use   sudo apt-get install python-virtualenv   which lets you create virtualenvs  or  sudo apt-get install python  3 -pip   which lets you install arbitrary packages to your home directory   If you re used to virtualenv  the first command gives you everything you need  remember  pip is bundled and will be installed in any virtualenv you create    If you just want to install packages  the second command gives you what you need   Use pip like this   pip install --user something   and put something like  PATH    local bin  PATH   in your    bashrc     If your distro is ancient and you don t want to use its packages at all  except for Python itself  probably   you can download virtualenv  either as a tarball or as a standalone script   wget -O   bin virtualenv https   raw github com pypa virtualenv master virtualenv py chmod  x   bin virtualenv     If your distro is more of the bleeding edge kind  Python3 3 has built-in virtualenv-like abilities   python3 -m venv   venv   This runs way faster  but setuptools and pip aren t included

User · Answer

To install pip on a mac  osx   the following one liner worked great for me   sudo easy install pip

User · Answer

On Ubuntu 12 04 I ve had good luck just using the package manager   sudo apt-get install python-pip virtualenvwrapper

User · Answer

http   www pip-installer org en latest installing html is really the canonical answer to this question   Specifically  the systemwide instructions are     curl -O http   python-distribute org distribute setup py   python distribute setup py   curl -O https   raw github com pypa pip master contrib get-pip py   python get-pip py   The section quoted in the question is the virtualenv instructions rather than the systemwide ones  The easy install instructions have been around for longer  but it isn t necessary to do it that way any more

User · Answer

This answer comes from  webology on Twitter     sudo apt-get install python-setuptools   sudo easy install pip   sudo pip install --upgrade pip virtualenv virtualenvwrapper   My added notes     On Mac Windows  and Linux if the apt repo is outdated  you d replace the first step with downloading setuptools from http   pypi python org pypi setuptools On Windows you d have to omit virtualenvwrapper from the last step and install it manually somehow  I don t know if there s a way to do this without Cygwin  but I hope so

User · Answer

In Raspbian  there is even no need to mention python2 7  Indeed this is best way to install pip if python version in less then 2 7 9   curl --silent --show-error --retry 5 https   bootstrap pypa io get-pip py   sudo python   Thanks to  tal-weiss

User · Answer

Do this   curl  https   bootstrap pypa io get-pip py  -o  get-pip py  python get-pip py pip install virtualenv   See    https   pip pypa io en latest installing html http   docs python-guide org en latest dev virtualenvs

[python] What is the official "preferred" way to install pip and virtualenv systemwide?

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