Support Django 4.1, drop 1.11.

[django-cas-provider.git] / cas_provider / attribute_formatters.py

diff --git a/cas_provider/attribute_formatters.py b/cas_provider/attribute_formatters.py
index 8574962..405f2c1 100644 (file)
--- a/cas_provider/attribute_formatters.py
+++ b/cas_provider/attribute_formatters.py
@@ -1,5 +1,3 @@
-from __future__ import unicode_literals
-
 from lxml import etree
 import collections
 
@@ -19,7 +17,7 @@ def jasig(auth_success, attrs):
     style = etree.SubElement(attributes, CAS + 'attraStyle')
     style.text = 'Jasig'
     for name, value in sorted(attrs.items()):
-        if isinstance(value, collections.Iterable) and not isinstance(value, basestring):
+        if isinstance(value, collections.abc.Iterable) and not isinstance(value, basestring):
             for e in value:
                 element = etree.SubElement(attributes, CAS + name)
                 element.text = e
@@ -32,7 +30,7 @@ def ruby_cas(auth_success, attrs):
     style = etree.SubElement(auth_success, CAS + 'attraStyle')
     style.text = 'RubyCAS'
     for name, value in sorted(attrs.items()):
-        if isinstance(value, collections.Iterable) and not isinstance(value, basestring):
+        if isinstance(value, collections.abc.Iterable) and not isinstance(value, basestring):
             for e in value:
                 element = etree.SubElement(auth_success, CAS + name)
                 element.text = e
@@ -44,7 +42,7 @@ def ruby_cas(auth_success, attrs):
 def name_value(auth_success, attrs):
     etree.SubElement(auth_success, CAS + 'attribute', name='attraStyle', value='Name-Value')
     for name, value in sorted(attrs.items()):
-        if isinstance(value, collections.Iterable) and not isinstance(value, basestring):
+        if isinstance(value, collections.abc.Iterable) and not isinstance(value, basestring):
             for e in value:
                 etree.SubElement(auth_success, CAS + 'attribute', name=name, value=e)
         else: