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Virtualenv in PowerShell for python

25 Jan

Today I was following a tutorial about Flask for python. While doing this I ran into a problem. I created a folder for my project. Then installed virtual environment module.

pip install virtual env 

ran successfully, module virualenv is now installed

virtualenv env 

this command also ran successfully. a virtual environment with name env is created.

so we have created a virtual environment. now to activate we need to run a batch file form inside the env folder.

env\Scripts\activate.bat

This will not run in power-shell because its a batch file.

so I tried the next option.

 env\Scripts\activate.ps1 

this gave an error.

.\env\Scripts\activate.ps1 : File D:\Userfiles\Desktop\Py Flask\env\Scripts\activate.ps1 cannot be loaded because running scripts is disabled on this system. For more
information, see about_Execution_Policies at https:/go.microsoft.com/fwlink/?LinkID=135170.

so how to activate our virtual environment?

lets remove the restriction.

 Set-ExecutionPolicy -Scope CurrentUser RemoteSigned 

the above command will enable running scripts for current user. we can disable this with the following command after we finish.

Set-ExecutionPolicy -Scope CurrentUser Restricted

running scripts is now enabled. lets try again.,with

.\env\Scripts\activate.ps1

It works! yay..

 
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Posted by on January 25, 2021 in Python

 

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