You may already know this, but: the latest Tk (8.6.9) doesn't play well with tkinter. Python's solution seems to have been to bundle 8.6.8 with new installs. In my own projects I installed 8.6.8 to regain functionality.
I posted an answer to a related question on stackoverflow and included links:
--Geoff Sametz
On Wed, Jun 26, 2019 at 2:41 PM <chimera-users-request@cgl.ucsf.edu> wrote:
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Message: 1
Date: Wed, 26 Jun 2019 10:58:21 -0700
From: Eric Pettersen <pett@cgl.ucsf.edu>
To: Neil Rzechorzek <njr48@cam.ac.uk>
Cc: "chimera-users@cgl.ucsf.edu BB" <chimera-users@cgl.ucsf.edu>
Subject: Re: [Chimera-users] Sudden Chimera issues with OSX Mojave?
Message-ID: <E66B6410-56F4-46D9-8596-C5AD33EE4C8D@cgl.ucsf.edu>
Content-Type: text/plain; charset="utf-8"
Hi Neil,
I don?t know why your systems would have started having problems in the last 48 hours. Nonetheless, I suggest you try using the daily build instead of the production release. The daily build uses a newer version of the Tk windowing toolkit that Chimera relies on to draw windows, handle scrolling, etc. and that newer version in particular has some fixes for bad scrolling behavior. If the daily build fails to remedy the problem, try using Chimera?s Help?Report a Bug to make a bug report. The bug report will include many details of your hardware and software setup that will help us investigate the problem.
?Eric
Eric Pettersen
UCSF Computer Graphics Lab
--
Dr. Geoffrey Sametz(302) 831-3621
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-- Dr. Neil Rzechorzek Senior Research Associate Department of Biochemistry University of Cambridge Sanger Building 80 Tennis Court Road Cambridge, UK CB2 1GA www.bioc.cam.ac.uk Biochemistry Enterprise Champion www.enterprise.cam.ac.uk Advisory Chairman - Entrepreneurial Postdocs Of Cambridge www.epoc.group.cam.ac.uk Email: njr48@cam.ac.uk Tel: +44 (0)1223 333652