Bump sqlalchemy from 1.3.12 to 1.3.14

[dependabot-preview[bot]]

Bumps sqlalchemy from 1.3.12 to 1.3.14.

Release notes

Sourced from sqlalchemy's releases.

1.3.14

Released: March 10, 2020

general

• [general] [bug] [py3k] Applied an explicit "cause" to most if not all internally raised exceptions that are raised from within an internal exception catch, to avoid misleading stacktraces that suggest an error within the handling of an exception. While it would be preferable to suppress the internally caught exception in the way that the __suppress_context__ attribute would, there does not as yet seem to be a way to do this without suppressing an enclosing user constructed context, so for now it exposes the internally caught exception as the cause so that full information about the context of the error is maintained.

  References: #4849

orm

• [orm] [bug] Fixed regression caused in 1.3.13 by #5056 where a refactor of the ORM path registry system made it such that a path could no longer be compared to an empty tuple, which can occur in a particular kind of joined eager loading path. The "empty tuple" use case has been resolved so that the path registry is compared to a path registry in all cases; the PathRegistry object itself now implements __eq__() and __ne__() methods which will take place for all equality comparisons and continue to succeed in the not anticipated case that a non- PathRegistry object is compared, while emitting a warning that this object should not be the subject of the comparison.

  References: #5110

• [orm] [bug] Setting a relationship to viewonly=True which is also the target of a back_populates or backref configuration will now emit a warning and eventually be disallowed. back_populates refers specifically to mutation of an attribute or collection, which is disallowed when the attribute is subject to viewonly=True. The viewonly attribute is not subject to persistence behaviors which means it will not reflect correct results when it is locally mutated.

  References: #5149

• [orm] [bug] Fixed an additional regression in the same area as that of #5080 introduced in 1.3.0b3 via #4468 where the ability to create a joined option across a with_polymorphic() into a relationship against the base class of that with_polymorphic, and then further into regular mapped relationships would fail as the base class component would

... (truncated)

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[codecov[bot]]

Codecov Report

Merging #123 into master will not change coverage by %. The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #123   +/-   ##
======================================
  Coverage    2.38%   2.38%           
======================================
  Files          11      11           
  Lines         294     294           
======================================
  Hits            7       7           
  Misses        287     287           

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[dependabot-preview[bot]]

Superseded by #124.