Python exec performance¶

I finally got around to reading Be careful with exec and eval in Python from the always insightful Armin Ronacher. This is not your typical 'exec/eval is dangerous' post. I distilled the lengthy article to the following useful sidenotes:

• Useful semi-low level discussion of how imports work

• Performance of exec:

  • Always use compile() if you need to run statement multiple times

  • Always run exec in local scope