It looks like I just confused myself, in my test case I got "None"
returned and I thought it was a model definition issue but it was me
leaving one of the columns used for the computed column at None.
So if I do just the following the read only column (FB SQL computed
column) are working for me.
class Quality(Base):
__table__ = sa.Table(u'quality', metadata,
...
sa.Column(u'comboname', sa.String(length=63, convert_unicode=False),
server_default=""),
...
)
# read only columns
comboname = sao.column_property(__table__.c.comboname)
Werner
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