Update python-SQLAlchemy to rev 74 via SR 787144
https://build.opensuse.org/request/show/787144
by user dirkmueller + dimstar_suse
- update to 1.3.15:
* Adjusted the error message emitted by :meth:`.Query.join` when a left hand
side can't be located that the :meth:`.Query.select_from` method is the
best way to resolve the issue. Also, within the 1.3 series, used a
deterministic ordering when determining the FROM clause from a given column
entity passed to :class:`.Query` so that the same expression is determined
each time.
* Fixed regression in 1.3.14 due to :ticket:`4849` where a sys.exc_info()
call failed to be invoked correctly when a flush error would occur. Test
coverage has been added for this exception case.
* Fixed bug where a CTE of an INSERT/UPDATE/DELETE that also uses RETURNING
could then not be SELECTed from directly, as the internal state of the
compiler would tr