Python upgrade3 12

README.md

@@ -354,7 +354,7 @@ If you need access to all of information in the item, then we can go a
 stage earlier in the process and override the td_contents method:
 
 ```python
-from flask import Markup
+from markupsafe import Markup
 
 def td_contents(self, i, attr_list):
     # by default this does

examples/sortable.py

@@ -1,5 +1,6 @@
 from flask_table import Table, Col, LinkCol
-from flask import Flask, Markup, request, url_for
+from flask import Flask, request, url_for
+from markupsafe import Markup
 
 """
 A example for creating a Table that is sortable by its header

flask_table/columns.py

@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
-from flask import Markup, url_for
+from flask import url_for
+from markupsafe import Markup
 from babel.dates import format_date, format_datetime
 from flask_babel import gettext as _
 

flask_table/html.py

@@ -2,7 +2,7 @@
 from __future__ import unicode_literals
 from functools import partial
 
-from flask import Markup
+from markupsafe import Markup
 
 
 def element(element, attrs=None, content='',

flask_table/table.py

@@ -2,7 +2,7 @@
 from __future__ import unicode_literals
 from collections import OrderedDict
 
-from flask import Markup
+from markupsafe import Markup
 from flask_babel import gettext as _
 
 from .columns import Col