Python and Virtualenv on Windows

Question

How do you install virtualenv correctly on windows?

I downloaded virtualenv1.9.1 from here and tried installing it with:

python virtualenv.py install

but it does not appear in MyPythonPath/Scripts

I tried the same way installing virutalenvwrapper-win and it installed correctly. But I can't use it because I don't have virtualenv

python.exe: can't open file 'MyPythonPath\Scripts\virtualenv-script.py': [Errno 2 ] No such file or directory

For Python v3 you probably want `pyvenv` which can be found from this SO question: http://stackoverflow.com/questions/15981111/where-is-pyvenv-script-in-python-3-on-windows-installed — icc97, Mar 27 '16 at 00:24

score 25 · Accepted Answer · edited Dec 14 '16 at 00:02

25

The suggested way to install Python packages is to use pip

Please follow this documentation to install pip: https://pip.pypa.io/en/latest/installing/

Note: Python 2.7.9 and above, and Python 3.4 and above include pip already.

Then install virtualenv:

pip install virtualenv

edited Dec 14 '16 at 00:02

Makoto

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answered Jul 19 '13 at 04:10

woozyking

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You're welcome. A suggestion about filtering learning resources: always go for language official documentations first, then maybe SO and/or Google :) – woozyking Jul 19 '13 at 04:50
I installed stuff with pip and still have the missing virtualenv-script.py error, but I'm attempting to install on powershell which may be complicating things. – rschwieb Nov 18 '14 at 18:03
@rschwieb installing it on powershell should be fine. Checkout http://virtualenv.readthedocs.org/en/latest/virtualenv.html#activate-script for details under Windows environments. – woozyking Nov 18 '14 at 19:50
PermissionError. My python installation is in program files. Workaround? – Santosh Kumar Jul 14 '17 at 08:59

score 12 · Answer 2 · edited Jan 04 '18 at 15:57

12

Since I got the same error as mentioned in the question inspite of installing with:

pip install virtualenv

I would like to add a few points, that might also help someone else solve the error in a similar way as me. Don't know if that's the best way, but for me nothing else helped.

Install virtualenv

pip install virtualenv

Move into Scripts directory

cd C:\Python27\Scripts

Create a virtual env.

python virtualenv.exe my_env

Activate the virtual env.

my_env\Scripts\activate.bat

Deactivate the virtual env.

my_env\Scripts\deactivate.bat

edited Jan 04 '18 at 15:57

Vallie

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answered Dec 14 '17 at 14:58

Susa

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Thanks. I had to do it from cmd. PowerShell gave me some errors – Hrvoje T Dec 10 '18 at 11:46

score 4 · Answer 3 · answered Sep 08 '19 at 12:23

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install virtualenv

pip install virtualenv
create a virtual environment

python -m virtualenv demoEnv
Activate the environment

demoEnv\Scripts\activate
To deactivate

deactivate

answered Sep 08 '19 at 12:23

anubhab

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score 3 · Answer 4 · answered Feb 12 '15 at 21:47

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There is an other way to install Python packages.

1: download the package, you want
2: open commander (press the win start-button and search for cmd)
3: cd into the folder where you downloaded your package
4: type: "python setup.py install"

answered Feb 12 '15 at 21:47

picibucor

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score 2 · Answer 5 · answered Jul 19 '13 at 04:51

For installing virtualenv, you'll have to either install it using pip as mentioned in the answer by woozyking or you'll have to do something like this:

$ curl -O https://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.9.1.tar.gz
$ tar xvfz virtualenv-1.9.1.tar.gz
$ cd virtualenv-1.9.1
$ [sudo] python setup.py install

The command which you have used can be used to create a virtualenv. I would recommend you go through these small videos on virtualenv and virtualenvwrapper to get a better understanding:

python-power-tools-virtualenv

virtualenvwrapper

Hasan Gökçe · Answer 6 · 2021-12-09T14:01:19.297

Creating a Virtual Environment on Windows

1. Create a virtual environment

python -m venv myenv

2. Activate

.\myenv\Scripts\activate

3. Extra information

To disable write
- deactivate
These commands will also work on windows
- myenv\Scripts\activate
- myenv\Scripts\activate.bat
- .\myenv\Scripts\activate.bat
Be careful with slashes:
- ~~myenv/Scripts/activate.bat~~
I prefer using this naming:
- python -m venv .venv
- .venv\Scripts\activate