Just some Python knowledge that I would like to share with the world...
To download Python, click here.
To make a script executable, you can use the following at the beginning of the script:
#!/usr/bin/env python
orÂ
#!/usr/local/bin/python
/Applications/Python 3.6/Install Certificates.command
python3 -m venv /path/to/the/newly/created/virtual/environment/dir