def sqlalchemy(self, is_top=True):
        table_def = self.table_backref_remover.sub('', self.table.__repr__())

        # inject UNIQUE constraints into table definition
        constraint_defs = []
        for constraint in self.table.constraints:
            if isinstance(constraint, sa.sql.schema.UniqueConstraint):
                col_list = ', '.join("'%s'" % c.name
                                     for c in constraint.columns)
                constraint_defs.append('UniqueConstraint(%s)' % col_list)
        if constraint_defs:
            constraint_defs = ',\n  '.join(constraint_defs) + ','
            table_def = table_def.replace('schema=None', '\n  ' + constraint_defs + 'schema=None')

        table_def = table_def.replace("MetaData(bind=None)", "metadata")
        table_def = table_def.replace("Column(", "\n  Column(")
        table_def = table_def.replace("schema=", "\n  schema=")
        result = [table_def, ]
        result.extend(c.sqlalchemy(is_top=False) for c in self.children.values())
        result = "\n%s = %s" % (self.table_name, "\n".join(result))
        if is_top:
            sqla_imports = set(self.capitalized_words.findall(table_def))
            sqla_imports &= set(dir(sa))
            sqla_imports = sorted(sqla_imports)
            result = self.sqlalchemy_setup_template % (
                ", ".join(sqla_imports), result, self.table.name)
            result = textwrap.dedent(result)
        return result
Modify & commit should write the right data to the server.
dataset/ETHPy150Open catherinedevlin/ddl-generator/ddlgenerator/ddlgenerator.py/Table.sqlalchemy--crossover with--dataset/ETHPy150Open twisted/ldaptor/ldaptor/test/test_ldapsyntax.py/LDAPSyntaxAttributesModificationOnWire.testReplaceAttributes