On Tuesday, March 6, 2018 at 3:23:42 PM UTC-5, KCY wrote:
> I recall coming upon a section about this in the SQLAlchemy docs, although 
> I can't remember where exactly. It's not the problem (if you can call it 
> that) that I'm describing here. I should double check to make sure the 
> design doesn't expect to have concurrent edits on the same objects.

I'm not suggesting it is the problem. What I am suggesting is that you're 
very likely going to have a concurrency/race problem when there is a first 
Session that lasts the scope of web requests, and a second session which 
operates on a GUI (you're likely to have this on a web requests only 
variant too).

SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper


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