Installing on Windows

Tip: To avoid errors, instead of typing the commands below, select and copy them from this page and paste them into the PowerShell.

1. Open a PowerShell, not a Command Prompt.

2. Enter py -0 and see if Python 3.12 is listed. If not, or if you get an error message like ‘command not found’:
   • Follow these instructions to check if you have 32-bit or 64-bit Windows.
   • Download and run the 32-bit installer or the 64-bit installer.
   • After installing, disable the pathname limit if you’re given that option.

3. If you installed Python in step 2, close the PowerShell and open a new one.

4. Enter cd <M269 folder path>, e.g. cd ~/OU/m269-25j, to go to your M269 folder. (~ is a shorthand for your home folder.)

5. Enter Invoke-WebRequest -Uri https://raw.githubusercontent.com/dsa-ou/m269-installer/main/install.ps1 -OutFile install.ps1 to download the installation script.

6. Enter Set-ExecutionPolicy -ExecutionPolicy Unrestricted -Scope CurrentUser to allow the installation script to run. Select the Y (yes) option if you’re given a choice.

7. Enter .\install.ps1 to run the installation script.

8. Close the PowerShell.

You will have these files in your M269 folder:

• install.ps1: the installation script
• requirements.txt: the list of M269 software
• custom.css: the style changes to Jupyter notebooks

Tip: Do not remove these files, so that you can re-install the software, if needed.

You will also have file start.ps1, which is needed to use the software.

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