How To Activate Python Virtual Environment In Windows

A Virtual Surround or a "venv" is a Python module that creates a unique environment for each task or project. It installs the packages nosotros demand that are unique to that setting while keeping your projects neatly organized. Additionally, venv never actually modifies the system's default Python versions or modules that are installed on the system. Using venv essentially allows for a unique working surroundings while avoiding any disruptions to other variants of Python that are used, but non related to our project.

Prerequisites

We recommend enabling the Windows Subsystem for Linux (WSL) in club to take total advantage of all the functionality of venv on Windows ten. This allows y'all to run a total Linux distribution within Windows to aid in the functionality of the new dev environment.

Why should I use WSL?

• Many of the tutorials for Python are written for Linux environments.
• Most devs use Linux based packaging/installation tools.
• Using WSL ensures compatibility betwixt development and production environments

How do I enable WSL?

• Go to First > then search for "Turn Windows features on or off."
• Click the link to open the Windows control panel.
• Next, open up the Windows features pop-upwardly menu.
• Scroll downward in that list to locate the "Windows Subsystem for Linux" option and select the checkbox.
• Reboot.

Annotation:

WSL volition require yous to download a version of Linux noted here.If you're using Windows (without WSL), simply install Python 3 from the Python website. The venv module is incorporated into that Windows installation.

Install Linux

There are multiple Linux distros that work with WSL. You tin locate and install them from the Microsoft Store. We recommend starting off with a Ubuntu 18.04 LTS distribution as it's up to date, has an excellent back up customs, and is well documented.

• To install Ubuntu, click this Ubuntu 18.04 LTS link. This will open the Microsoft store where you can click on the Get push button.
• Once the download has completed, blazon "Ubuntu eighteen.04 LTS" into your Start menu.
• Side by side, you'll exist asked to create a username and password equally information technology will be your first time using this OS.
• Afterwards, y'all volition now be signed in automatically as the default user.
• Lastly, we'll need to run an update on the new Bone. Yous can accomplish this past running:

            sudo apt update && sudo apt upgrade          

As a side note, Windows does non handle upgrades for this Os so y'all will need to ensure Ubuntu stays up to date by running the update and upgrade commands manually.

You can and so install your distro using PowerShell. To install i of those distros, navigate to the folder which contains the newly downloaded Linux distributions. Once in that folder, run the following control in PowerShell (where app_name.aspx is the proper name of the distribution file):

            Add-AppxPackage .\app_name.appx          

Next, we'll add the path to the distro into your Windows surroundings PATH using Powershell (eg. C:\Users\Admin\Ubuntu)

            $userenv = [Organization.Surround]::GetEnvironmentVariable("Path", "User")  [System.Surround]::SetEnvironmentVariable("PATH", $userenv + ";C:\Users\Admin\Ubuntu", "User")          

Now, we can outset the distro by typing in uubuntu.exe. Next, nosotros should initialize the new instance.

Launch a distro

To terminate the initialization of your newly installed distro, nosotros will need to launch a new instance. You can achieve this past clicking on the "launch" button in the Microsoft app shop, or past launching the distro'south .exe file from the Start menu. Additionally, if using a Windows Server, y'all can outset the distro'southward launcher'southward executable file (Ubuntu.exe) from the distro's installation binder.

During the final stage of the installation, the distro'southward files will be decompressed and stored locally on your PC. This procedure may have a few minutes but is only required one time. Afterward initializations should take less than a second.

Setup

There are four basic steps to install a virtual environs on windows:

1. Install Python
2. Install Pip
3. Install VirtualEnv
4. Install VirtualEnvWrapper-win

Note:

Call back, these commands should exist run within the WSL Ubuntu environment. Additionally, the sudo control may be needed if not running as the root user.

Step 1. Install Python

Python 3.eight.0 is the latest major release of Python.

• Note: There is now a "web-based" installer for Windows. This installer will download the required software during the installation.
• There are also Python redistributable files that contain the Windows builds, which makes it easier to include Python in another software parcel.
• If you installed Ubuntu eighteen.04 from the above list, Python3 comes pre-installed.

Step 2. Install PIP

We suggest following the directions located here in our knowledge base article regarding installing PIP on Windows. Python3 usually comes with pip preinstalled, yet, if you lot get the mistake "pip command non found," simply use the following method to install pip.

            whorl https://bootstrap.pypa.io/get-pip.py -o become-pip.py          

• Download go-pip.py, and make sure you're saving the file to your Desktop.
• At your Windows Command Prompt, navigate to your Desktop and run the get-pip.py script. After that, pip should work system-wide

Note:

You may need to accept administrative privileges at the command prompt to accomplish this task. For more info on this, follow the directions from Starting time a Command Prompt as an Ambassador from the Microsoft TechNet website.

            cd Desktop Python get-pip.py          

Step 3. Install Virtualenv

In your Windows command shell prompt blazon in:

Start virtualenv

In your windows control prompt, head to your project location:

 One time within the project folder run:

Activate virtualenv

On Windows, virtualenv (venv) creates a batch file called

            \env\Scripts\activate.bat          

To activate virtualenv on Windows, and actuate the script is in the Scripts folder :

            \pathto\env\Scripts\activate          

Instance:

            C:\Users\'Username'\venv\Scripts\activate.bat          

Step iv. Install VirtualEnvWrapper-win

 There are two main methods we recommend to install this batch script.

• Using pip

                          pip install virtualenvwrapper-win          

• Install from source

            git clone git://github.com/davidmarble/virtualenvwrapper-win.git          

We and then cd to the virtualenvwrapper-win folder and run:

And that's it! Python's venv is set up and prepare to use.

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Source: https://www.liquidweb.com/kb/how-to-setup-a-python-virtual-environment-on-windows-10/

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