How to set up and use a virtual python environment in Ubuntu?

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With virtualenvwrapper (user friendly wrappers for the functionality of virtualenv)

Install virtualenv

Install virtualenv with

sudo apt-get install virtualenv

(for Ubuntu 14.04 (trusty) install python-virtualenv)

Install virtualenvwrapper

The reason we are also installing virtualenvwrapper is because it offers nice and simple commands to manage your virtual environments. There are two ways to install virtualenvwrapper:

As Ubuntu package (from Ubuntu 16.04)

Run

sudo apt install virtualenvwrapper

then run

echo "source /usr/share/virtualenvwrapper/virtualenvwrapper.sh" >> ~/.bashrc

Using pip

Install and/or update pip

Install pip for Python 2 with

sudo apt-get install python-pip

or for Python 3

sudo apt-get install python3-pip

(if you use Python 3, you may need to use pip3 instead of pip in the rest of this guide).

Optional (but recommended): Turn on bash autocomplete for...

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Python virtual environments are used to create isolated python environments to avoid dependency and version conflicts, and also indirectly take care of permission issues. But what is the easiest way to set it up, and use it, in Ubuntu?

With virtualenvwrapper (user friendly wrappers for the functionality of virtualenv)

Install virtualenv

Install virtualenv with

sudo apt-get install virtualenv

(for Ubuntu 14.04 (trusty) install python-virtualenv)

Install virtualenvwrapper

The reason we are also installing virtualenvwrapper is because it offers nice and simple commands to manage your virtual environments. There are two ways to install virtualenvwrapper:

As Ubuntu package (from Ubuntu 16.04)

Run

sudo apt install virtualenvwrapper

then run

echo "source /usr/share/virtualenvwrapper/virtualenvwrapper.sh" >> ~/.bashrc

Using pip

Install and/or update pip

Install pip for Python 2 with

sudo apt-get...
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In this tutorial , I am going to show you that how to Install , configure and use python virtual environment in Ubuntu . Python Virtual environment provide flexibility to switch between environments easily according to your requirements , python virtualenvs create isolated python environment which contains all project specific dependencies separately .

Please Note : These steps demonstrated and tested on Ubuntu 15.04 but they will work same on other Ubuntu and Debian based distributions .

Setup

apt-get install build-essential # Install Python Development package and pip apt-get install python2.7-dev python-setuptools sudo easy_install pip

Now Install virtualenv

sudo pip install virtualenv

After Install You can use virtualenv to setup virtual environment

cd your_project_folder virtualenv venv

then activate the virtual environment

source venv/bin/activate

Before using virtualenv freeze pip and pipe that to requirements.txt file

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virtualenv is a tool to create isolated Python environments. You can read more about it in the Virtualenv documentation. This article provides a quick summary to help you set up and use a virtual environment.

A Note About Python 3.6 and Ubuntu 16.04 LTS¶

If you’re running Ubuntu 16.04 LTS (or and earlier version), Python 3.5 is likely installed by default. Don’t remove it! To get Python 3.6, follow the instructions in this section.

Add the PPA¶

Run the following command to add the Python 3.6 PPA.

sudo add-apt-repository ppa:jonathonf/python-3.6

Check for Updates and Install¶

Check for updates and install Python 3.6 via the following commands.

sudo apt-get update sudo apt-get install python3.6

Now you have three Python version, use python to run version 2.7, python3 for version 3.5, and python3.6 for version 3.6.

For more information on this subject, check out Ji m’s article How to Install Python 3.6.1 in Ubuntu 16.04...

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In this tutorial we are going to learn how to setup python virtual environment in Ubuntu Linux.

Python Virtual environments allow to create Isolated development environments for each of our python projects. Anything you do inside the Virtual environment will not have any effect on your local environment. It is a great way to develop your Python Project, So let’s see.

First, we need to install python pip command on Ubuntu Linux. Open your Ubuntu terminal and Type:

sudo apt-get update sudo apt-get install python3-pip

Then, We use pip command to install virtualenvwrapper package which provides the tools we need to create Python Virtual environments on Ubuntu Linux.

sudo -H pip3 install virtualenvwrapper

Next, we need to add a couple of environment variables to the .bashrc file (You can find .bashrc file in your home folder).

Open the .bashrc file using a text editor.

vim ~/.bashrc

Then, add the following settings at the end of the file.

#...
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Python is already installed in Ubuntu. and check what version installed in it.

$ python -V

Install needed package for python development

$ sudo apt-get install build-essential python-dev libsqlite3-dev libreadline6-dev libgdbm-dev zlib1g-dev libbz2-dev sqlite3 zip

Install python3

$ sudo apt-get install python3 python3-dev

Enable easy_install

To use easy_install you need to install setuptools. setuptools is not maintained so then instead of it, distribute take the place of it. but now setup tool is updated. if you want to know more check official site

$ mkdir ~/src

Download setup file.

$ wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py

Execute it and start install

$ sudo python ez_setup.py

Install pip

After enabling easy_install, install pip next. What is pip? check document

$ sudo easy_install pip

Install virtualenv and virtualenvwrapper

Virtualenv enables you to make different environment...

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I've read a lot of blog post about this and I'm still confused as to what is "best" way to set it up. Most of the blog posts I've read are out-dated. I'm new to Linux and have messed up my system twice now and still can't setup the virtual environments properly. According to what I've read, Virtualenv and Virtualenvwrapper combination is the most widely used setup. So, After a fresh Ubuntu 16.04 LTS install, I do the following:

Install Python 3.6 as shown in the following link.
https://tecadmin.net/install-python-3-6-ubuntu-linuxmint/
The current state of the system now is,
$ python3.6 -V
Python 3.6.4

$ pip3.6 -V
pip 9.0.1 from /usr/local/lib/python3.6/site-packages (python 3.6)

pip3 (python3.5) and pip(python2.7) do not come pre-installed. To install them , I do:
$ sudo apt-get install python-pip
$ sudo apt-get install python3-pip

$ which pip
/usr/bin/pip

$ which pip3
/usr/bin/pip3
...

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Introduction

This tutorial will get your Ubuntu 16.04 or Debian 8 server set up with a Python 3 programming environment. Programming on a server has many advantages and makes it easier for teams to collaborate on a development project. The general principles of this tutorial will apply to any distribution of Debian Linux.

Python is a versatile programming language that can be used for many different programming projects. First published in 1991 with a name inspired by the British comedy group Monty Python, the development team wanted to make Python a language that was fun to use. Easy to set up, and written in a relatively straightforward style with immediate feedback on errors, Python is a great choice for beginners and experienced developers alike. Python 3 is the most current version of the language and is considered to be the future of Python.

This tutorial will guide you through installing Python 3 on a Debian Linux server and setting up a programming...

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You are Welcome! This Tutorial Shows You Step-by-Step How-to Getting-Started with Python 3.X Virtualenv on Ubuntu 16.04 Xenial LTS i386/amd64 GNU/Linux.

And a Python 3 Virtualenv on Ubuntu 16.04 Setup make use of the Python 3 venv Tool to Make Virtual Environments.

Finally each venv Virtual Environment has its own Python binary and can have its own independent set of installed Python packages in its site directories.

Open a Terminal Shell emulator window
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands)

Install Virtualenv Python 3 on Ubuntu

Virtualenv Python 3 Install Guide

To Make a Python 3 Virtual Environmnet

python3 -m venv test ~/Envs/test

Then to Activate Virtual Environment

source ~/Envs/test/bin/activate

To List All the Existing Virtual Environments

ls $WORKON_HOME

To Switch the Virtual Environmnet

python3 -m venv test ~/Envs/essai source ~/Envs/essai/bin/activate

Show the...

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I installed python3-virtualenv on Lubuntu 15.1 using the official Ubuntu package apt-get install python3-virtualenv. The official documentation indicates that a simple virtualenv . in my project directory should be enough to create the venv. This does nothing, because which virtualenv does nothing. (Nothing from which python-virtualenv and which python3-virtualenv also).

The package information, once installed, says that it installed /usr/lib/python3/dist-packages/virtualenv.py, so I invoke this under python3. It gives me this:

$ python3 /usr/lib/python3/dist-packages/virtualenv.py . Running virtualenv with interpreter /usr/bin/python2 New python executable in ./bin/python2 Also creating executable in ./bin/python Installing setuptools, pip...done.

Yep, when I look, everything in ./bin is python2. Is ubuntu's python3-virtualenv a dummy package for python2?

The official python documentation says use a different package: python3-venv. This seems to work when I...

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Below are the steps for creating a virtual Python development environment. If you don’t know what they means then below there is each step explained.

Update the system – sudo apt-get updateUpgrade the system – sudo apt-get -y upgradeCheck Python version – python for Python 2.X, or python3 for Python 3.XInstall pip – sudo apt-get install -y python3-pip for Python 3.XInstall a few extra packages – sudo apt-get install build-essential libssl-dev libffi-dev python-devInstall venv – sudo apt-get install -y python3-venvCreate a folder for the environments – mkdir PythonProjectsChange directory to PythonProjects – cd PythonProjectsCreate the virtual environment – python3 -m venv MyWebsiteActivate/Deactivate the virtual environment – source MyWebsite/bin/activate or deactivate for deactivating it.

I use Linux on my machine but the steps shown below are the same for Windows and Mac.

About virtual environment

A virtual Python development environment is an isolated Python...

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Introduction

This tutorial will get you up and running with a local Python 3 programming environment in either Ubuntu 16.04 or Debian 8.

Python is a versatile programming language that can be used for many different programming projects. First published in 1991 with a name inspired by the British comedy group Monty Python, the development team wanted to make Python a language that was fun to use. Easy to set up, and written in a relatively straightforward style with immediate feedback on errors, Python is a great choice for beginners and experienced developers alike. Python 3 is the most current version of the language and is considered to be the future of Python.

This tutorial will guide you through installing Python 3 on your local Linux machine and setting up a programming environment via the command line. This tutorial will explicitly cover the installation procedures for Ubuntu 16.04 and Debian 8, but the general principles apply to any other distribution...

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Python-guide describes virtualenv as a tool to create an isolated Python environment. As a newbie in Python, I did not yet understand the importance of working with virtual environments. Long story short, I learnt this the hard way.

Adding dependencies of a project to the global Python comes with some cons. I installed dependencies that conflicted with other software specifically “wine” and therefore could not run Balsamiq Mockups. I needed this to create wire-frames for my Andela Boot-camp challenge. After an hour of consulting google I understood what was wrong and followed Python-guide to set up my virtual environment.

So. How did I go about it. As an apprentice in programming I know the power of Google and I did what we as apprentices do best and consulted it. I found out a few ways to go about it but the Python-guide provided the best solution in terms of sequence of instruction and explanations for each instruction. In the...

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Brief: This guide shows you how to set up Python environment on Linux and other Unix-like systems.

If you’ve ever tried to set up a Python development environment in Windows, you know how challenging it can be. Recently, Python released a new version of their installers that have made that process nearly painless, but that doesn’t mean you get the best development environment out of the box, so, in the spirit of a recent post on It’s Foss about setting up a C++ environment, here’s how to do the same for Python.

Great news, Python’s already there

As a *nix user (because this applies to OsX as well) you already have some version of Python installed on your system. In fact, it’s probably a large part of how your package installer works. The real issue is finding out which Python version you have installed by default, and which Python version you are planning on programming with. So open a terminal and check what you have:

python...

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How to set up a mail server on a GNU / Linux system

Step by step guide to install Postfix

Ubuntu + Postfix + Courier/Dovecot IMAP + MySQL + Amavisd-new + SpamAssassin + ClamAV + SASL + TLS + Roundcube + Postgrey

Easy to follow howto on setting up a mail server with unlimited users and domains, with IMAP access, anti-spam, anti-virus, secure authentication, encrypted traffic, web mail interface and more.

Based on an Ubuntu distribution platform, but instructions are distro generic. Examples are run on Amazon AWS ec2, but only for demonstration purposes.

14th edition Author Ivar Abrahamsen License: Respect (CC by-sa) Last Update: 2017-12-11 Contact / Discuss / Contribute

Contents

Editions

List of different versions of this document.

Introduction

Brief description of this document.

Software

Which software packages are we using and why.

Installation

How to install all packages and...

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