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Current Version of Python

• python3 --version -> Python 3.7.4
• Alternatively try python --version
• If no versions appear:
  • Link to install python (might be best to install it)
  • Click on Downloads -> Download Python version_number
  • Once installed, open Python folder and click to run Install Certificates.command

Installing Visual Studio Code

• Install here
• Open and click on Extensions icon, upper left column, last icon
• Search for Python, created by Microsoft and then install
• Restart VSCode
• If you open a directory that contains python files and look at the bottom left part of the editor, you should see a python version. If not:
  • Command + Shift + p hold down all three and when the search bar appears type in python: select interpreter, then select it and choose the version of python you have installed.
• Now, when you click the debug icon on the left pane, and confirm No Configurations, click on the gear:
  • You should be able to select Python as your environment (help)
  • It should then open a launch.json file
    • Add "cwd": "" to the json list
  • Additionally, if you have both python 2 and python 3 installed, then you might want to tweak the python path by:
    • Code -> Preferences -> Settings
    • Search for python.pythonPath and confirm that it uses python3

Python Interpreter Mode

• Open terminal
• run python3 to enter python command line mode
• exit() to exit the interpreter

Run Python Files

• python3 path_to_file

Python __name__

• Distinguishes if the file is being called directly or if the file was being included
  • If being called directly, python assigns the __name__ variable to __main__