Hi https://docs.python.org/3/tutorial/classes.html A sentence reads, "Clients should use data attributes with care - clients may mess up invariants maintained by the methods by stamping on their data attributes." I think it should be, "Clients should use data attributes with care - clients may mess up invariants maintained by the methods by stomping on their data attributes.". Regards, Lyle Ziegelmiller 1-650-288-7679 ________________________________ NOTICE: This e-mail message, together with any attachments, contains information of Clearwater Analytics and/or its affiliates that may be confidential, proprietary copyrighted and/or legally privileged, and is intended solely for the use of the individual or entity named on this message. If you are not the intended recipient, and have received this message in error, please immediately delete it. The information we provide is from sources Clearwater Analytics considers reliable, but Clearwater Analytics provides no warranties regarding the accuracy of the information. Further, nothing in the email should be construed as legal, financial, or tax advice, and any questions regarding the intended recipient's individual circumstances should be addressed to that recipient's lawyer and/or accountant. Clearwater Analytics, 777 W. Main St, Boise, ID 83702 If you prefer not to receive emails from Clearwater Analytics you may unsubscribe<https://clearwater-analytics.com/unsubscribe>.