修改代码不规范问题

zpl_print/models/__init__.py

@@ -1,2 +1,2 @@
 # -*-coding:utf-8-*-
-from .import common
+from . import common

zpl_print/models/common.py

@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
-from odoo import models
 import ctypes
+from odoo import models
 
 
 class Common(models.Model):
@@ -19,6 +19,3 @@ class Common(models.Model):
             tsclibrary.closeport();
         except Exception as e:
             raise UserWarning("错误警告")
-
-
-