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[Brian Haley <1685352@xxxxxxxxxxxxxxxxxx>]

Looks like this code was changed for Sqlalchemy 2.0 in
d7ba5948ffe4ff4ec760a2774c699774b065cdfb as from_engine() is deprecated,
will close this bug.

** Changed in: neutron
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1685352

Title:
  Can't invoke function 'get_bind' from alembic.op in
  expand_drop_exceptions function in alembic migration scripts

Status in neutron:
  Invalid

Bug description:
  If something like:

      inspector = reflection.Inspector.from_engine(op.get_bind())

  is used in alembic migration scripts in functions
  expand_drop_exceptions() or contract_creation_exceptions() then there
  is error like:

      NameError: Can't invoke function 'get_bind', as the proxy object
  has not yet been established for the Alembic 'Operations' class.  Try
  placing this code inside a callable.

  Those 2 functions are used only in functional tests but it would be
  nice to have possibility to use this Inspector class for example to
  get names of constraints from database.

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