从Sql server迁移到Mysql workbench时出现python module错误

之前上网查教程成功重置了自己Sql server的sa密码，正准备将自己的数据库迁移到mysql上，结果到Migration阶段时就报错：

Starting...
Migrate Selected Objects....

Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\wizard_progress_page_widget.py", line 197, in thread_work
    self.func()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration_object_migration.py", line 117, in task_migrate
    self.main.plan.migrate()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration.py", line 510, in migrate
    self.migrationTarget.catalog = self.migrationSource.migration.migrateCatalog(self.state, self.migrationSource.catalog)
SystemError: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
ERROR: Migrate Selected Objects: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
Failed


Starting...
Migrate Selected Objects....

Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\wizard_progress_page_widget.py", line 197, in thread_work
    self.func()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration_object_migration.py", line 117, in task_migrate
    self.main.plan.migrate()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration.py", line 510, in migrate
    self.migrationTarget.catalog = self.migrationSource.migration.migrateCatalog(self.state, self.migrationSource.catalog)
SystemError: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
ERROR: Migrate Selected Objects: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
Failed


Starting...
Migrate Selected Objects....

Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\wizard_progress_page_widget.py", line 197, in thread_work
    self.func()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration_object_migration.py", line 117, in task_migrate
    self.main.plan.migrate()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration.py", line 510, in migrate
    self.migrationTarget.catalog = self.migrationSource.migration.migrateCatalog(self.state, self.migrationSource.catalog)
SystemError: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
ERROR: Migrate Selected Objects: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
Failed


Starting...
Migrate Selected Objects....

Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\wizard_progress_page_widget.py", line 197, in thread_work
    self.func()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration_object_migration.py", line 117, in task_migrate
    self.main.plan.migrate()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration.py", line 510, in migrate
    self.migrationTarget.catalog = self.migrationSource.migration.migrateCatalog(self.state, self.migrationSource.catalog)
SystemError: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
ERROR: Migrate Selected Objects: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
Failed


Starting...
Migrate Selected Objects....

Traceback (most recent call last):
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\workbench\wizard_progress_page_widget.py", line 197, in thread_work
    self.func()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration_object_migration.py", line 117, in task_migrate
    self.main.plan.migrate()
  File "C:\Program Files\MySQL\MySQL Workbench 8.0 CE\modules\migration.py", line 510, in migrate
    self.migrationTarget.catalog = self.migrationSource.migration.migrateCatalog(self.state, self.migrationSource.catalog)
SystemError: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
ERROR: Migrate Selected Objects: AttributeError("module 'string' has no attribute 'maketrans'"): error calling Python module function DbMssqlMigration.migrateCatalog
Failed

只知道看起来是python的某个模块错误，但完全不知道原因在哪以及如何解决，求解答。