Installing Python 3.9.13

Python 3.9 is currently required to run SoSTrades platform, and 3.9.13 is the latest version for which a Windows installer is available making it easy for you to install.

Get Python3.9.13 installer

  • go to https://www.python.org/downloads/release/python-3913/

  • go at the bottom of the page and select the Windows installer (64-bits) to download it

  • open a command prompt (type command in the search next to the start button)

  • move to your download folder (cd %HOMEDRIVE%%HOMEPATH%\Downloads)

  • find the downloaded pyton installer (should be a python-3.9.13-amd64.exe in file there)

  • check the MD5 signature of what you downloaded match the one displayed on the download webpage (currently e7062b85c3624af82079794729618eca but double check !) using windows built-in utility :
    CertUtil -hashfile python-3.9.13-amd64.exe MD5

Run the python installer

  • run python-3.9.13-amd64.exe

  • select the local install (for user only and not for all users)

Spot the installed python3.9 interpreter

It should be located in C:\Users\<login name>\AppData\Local\Programs\Python\Python39\python.exe :

  • open your local AppData folder.
    Beware it's a hidden folder by default in your user directory, so if you do not see it, you need to go in your File Explorer options menu (select the 3 dots in the toolbar to access options), select the "View" tab and click the "Show hidden files, folders and drives" option

  • Move to AppData\Local\Programs\Python\Python39 and spot the python.exe file

  • Select it and copy it as path ("Copy as Path" in the contextual menu or Ctrl-Shift-C)

This python.exe is the one you will have to use for running the SoSTrades installation scripts,
so you'll have to use the full path to be sure you're using it !