Hi Jeff, Your message appears to be blank to me. It could be on my end, but I couldn't see any content with my phone or computer. JDog From: pythonvis-bounce@xxxxxxxxxxxxx [mailto:pythonvis-bounce@xxxxxxxxxxxxx] On Behalf Of Jeffrey Thompson Sent: Friday, February 06, 2015 6:20 AM To: pythonvis@xxxxxxxxxxxxx Subject: [pythonvis] a Question on python classes