old_contents: """
     This module extends SQLAlchemy and provides additional DDL [#]_
     support.
  
     .. [#] SQL Data Definition Language
  """
  import sqlalchemy
  
  from sqlalchemy import __version__ as _sa_version
  import re
  
  _sa_version = tuple(int(re.match("\d+", x).group(0)) for x in _sa_version.split("."))
  SQLA_06 = _sa_version >= (0, 6)
  
  del re
  del _sa_version
  
  from migrate.changeset.schema import *
  from migrate.changeset.constraint import *
  
  sqlalchemy.schema.Table.__bases__ += (ChangesetTable, )
  sqlalchemy.schema.Column.__bases__ += (ChangesetColumn, )
  sqlalchemy.schema.Index.__bases__ += (ChangesetIndex, )
  
  sqlalchemy.schema.DefaultClause.__bases__ += (ChangesetDefaultClause, )
  
new_contents: """
     This module extends SQLAlchemy and provides additional DDL [#]_
     support.
  
     .. [#] SQL Data Definition Language
  """
  import re
  import warnings
  
  import sqlalchemy
  from sqlalchemy import __version__ as _sa_version
  
  warnings.simplefilter('always', DeprecationWarning)
  
  _sa_version = tuple(int(re.match("\d+", x).group(0)) for x in _sa_version.split("."))
  SQLA_06 = _sa_version >= (0, 6)
  
  del re
  del _sa_version
  
  from migrate.changeset.schema import *
  from migrate.changeset.constraint import *
  
  sqlalchemy.schema.Table.__bases__ += (ChangesetTable, )
  sqlalchemy.schema.Column.__bases__ += (ChangesetColumn, )
  sqlalchemy.schema.Index.__bases__ += (ChangesetIndex, )
  
  sqlalchemy.schema.DefaultClause.__bases__ += (ChangesetDefaultClause, )
  
subject: fix tests on python2.7