'virtualenv' is not recognized as an internal or external command, operable program or batch file

After I installed Python and Djangom, I'm trying to use virtualenv for django project purpose using virtualenv. I installed virtualenv using pip.

pip install virtualenv # got install successfully

When I tried to run it, I got the error message

C:\Users\gshiv\Desktop\DjangoProject>virtualenv
'virtualenv' is not recognized as an internal or external command,
operable program or batch file.
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最佳答案

steps: - go to where you want create django app on that folder.

then run this command on command prompt : python -m virtualenv .

(eg. C:\Users\gshiv\Desktop\django>python -m virtualenv .)

where django is the my folder i want run virtualenv and .(dot) indicates virtualenv install all it's folder in django folder otherwise you can use other folder name instead .(dot) this time virtulenv creates a folder in main folder(django) .

  • after running this command: run .\scripts\activate now you can see this type of line on cmd-prompt (django) C:\Users\gshiv\Desktop\django>
  • i.e main folder name before the source path. now you can install any modules for your project that belongs to that main folder only.

pip install django works fine.

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There are three points that you need to consider:

  • Make sure that in the windows PATH variable there is an entry with your python installation and the scripts subfolder eg: C:\Program Files (x86)\Python36-32\ and C:\Program Files (x86)\Python36-32\Scripts\
  • When using pip install virtualenv, make sure that you run cmd as administrator. Otherwise, there might an access denied error during installation and virtualenv will not be installed properly.
  • Make sure that virtualenv has been installed correctly. Check in the python scripts subfolder - there must exist an .exe named virtualenv.exe. If not, uninstall will pip uninstall virtualenv and install again.
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When I ran the pip install virtualenv command I got:

Requirement already satisfied: virtualenv in c:\directory\to\appdata\roaming\python\python36\site-packages

so I tried forcing upgrade:

pip install --upgrade --force virtualenv
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py -3 -m venv venv

try using the above command.

virtualenv venv

will work on only older version of python

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Try executing virtualenv.exe from its absolute path, like in my case i found it in C:\Users\<your user>\AppData\Roaming\Python\Python37\Scripts\virtualenv.exe.

I tried this and it worked, here refer the logs as follows:

Using base prefix c:\\users\\<user>\\appdata\\local\\programs\\python\\python37-32 New python executable in C:\somedir\dir2\dir3\ML_1\ml\env\Scripts\python.exe Installing setuptools, pip, wheel... done.

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To install to a specific folder e.g E:\publish

pip install virtualenv

virtualenv .

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Run pip uninstall virtualenv and then pip install virtualenv

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Run CMD as administrator and then enter

pip uninstall virtualenv

then re-run CMD as administrator and run

pip install virtualenv
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Make sure that virtualenv has been installed correctly. Check in the python scripts subfolder - there must exist an .exe named virtualenv.exe. If not, uninstall will pip uninstall virtualenv and install again.

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For windows First, install -> pip install virtualenvwrapper-win Then setup -> mkvirtualenv myproject Then you see the list of virtual environment To see it you write-> lsvirtualenv For working this environment we write -> workon myproject

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If you can not find your 'virtualenv' command in the windows console after installing it with pip try this to make your environment:

python -m virtualenv <nameOfEnv>

If you need to use a specific version of python, initialize it like this:

python -m virtualenv <nameOfEnv> -p=<C:/path/to/python/version3.x.x/python.exe>

When using windows for first installation, you can use python from WindowsApp

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This almost works for all

  1. Open Command Prompt, navigate it to the Envs folder, run "env_name\Scripts\activate"
  2. Check whether virtualenv is installed or not, if not install it:
    • pip install virtualenv
    • pip install virtualenvwrapper-win
  3. Game On. Check on your IDE.
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  1. Open a cmd or ps with run as admin.
  2. Now run pip uninstall virtual.
  3. pip install virtual.
  4. Done :D

Implementation:

  1. Go to the directory where you want to make a python env.
  2. type: virtualenv myEnv
  3. beep bop boop done.

ps: Always use cmd or powershell with run as admin if you're installing some new package.

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Use

python -m venv abc

Where abc is the name of the virtual environment

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1)First Way as

python -m virtualenv name_of_virtual_environment

OR

2)Second Way as

py -3 -m venv name_of_virtual_environment

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Use "py -m virtualenv Your_Folder_Name"

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I got this error too but I figure it out. you just have to open PowerShell as administrator and then write following command Set-ExecutionPolicy unrestricted then type A. you are all set! now uninstall the packages and re-install them. Now if you write flask --version or virtualenv --version There will be no error at all.

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Try to run

    PowerShell.exe -command "./venv/Scripts/activate"
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Windows

If you want to use the lsvirtualenv command with virtualenv, follow the steps below.

Incorrect:

python -m pip install virtualenv

python -m pip install virtualenvwrapper

Correct:

python -m pip install virtualenv

python -m pip install virtualenvwrapper-win

Basic Uses

Then, to create a virtual environment:

mkvirtualenv youVirtualEnvironmentName
  • It will be activated automatically: 
    C:\Users\YourUserName (youVirtualEnvironmentName) λ

First, to access an existing virtual environment:

C:\Users\YourUserName λ workon youVirtualEnvironmentName

Next, to exit the currently active virtual environment:

C:\Users\YourUserName (youVirtualEnvironmentName) λ deactivate

Finally, to list all your virtual environments:

C:\Users\YourUserName λ lsvirtualenv


dir /b /ad 'C:\Users\YourUserName\Envs'
==================================================================
youVirtualEnvironmentName
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I had this same issue using python3.

The solution was to use the python3 -m virtualenv . command.

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  • Step 1: Run pip uninstall virtualenv.
  • Step 2: Run pip install virtualenv.
  • Step 2.1: Run virtualenv to check if it's now working...
  • Step 3: Still not working? Go to your prevouis console log to find where it says "WARNING: The script virtualenv.exe is installed in 'C:\Users\username\AppData\Roaming\Python\Python310\Scripts' which is not on PATH."
  • Step 4: Copy the specified path from the warning message.
  • Step 5: Search for and open "System Properties" on your PC.
  • Step 6: Click the Advance tab, and then the Environment Variables Button on the bottom right.
  • Step 7: Click the variable value "Path" and then click edit.
  • Step 8: In the Edit Environment variable window, click new then paste your path in any slot.
  • Step 9: MAKE SURE you click OK twice and not to just exit out.
  • Step 10: Reboot terminal and check again.
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You just need to reinstall virtualenv. First of all you need to uninstall virtualenv with this command.

pip uninstall virtualenv

Then just reinstall with this command.

pip install virtualenv

Solution-1: python -m venv name_of_virtual_environment

E:\code\python\tvenv>python -m venv myenv


E:\code\python\tvenv>cd myenv\Scripts\


E:\code\python\tvenv\myenv\Scripts>activate.bat


(myenv) E:\code\python\tvenv\myenv\Scripts>deactivate.bat
E:\code\python\tvenv\myenv\Scripts>

Solution-2: py -3 -m venv name_of_virtual_environment

E:\code\python\tvenv>py -3 -m venv myenv


E:\code\python\tvenv>cd myenv\Scripts


E:\code\python\tvenv\myenv\Scripts>activate.bat


(myenv) E:\code\python\tvenv\myenv\Scripts>deactivate.bat
E:\code\python\tvenv\myenv\Scripts>

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