On Sunday, October 16, 2016 at 10:09:00 AM UTC-4, Mike Bayer wrote:
> The simplest way is probably to set the creation order of the column to 
> be at the top: 
> col = Column(...) 
> col._creation_order = -10

Great. I will use _creation_order. Thanks.

By the way, in view of PEP 520 
(https://docs.python.org/3.6/whatsnew/3.6.html#whatsnew-deforder), in 
Python 3.6 will delcared_attr columns appear in their order of definition 
among all columns rather than after all explicitly defined columns?

SQLAlchemy - 
The Python SQL Toolkit and Object Relational Mapper


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