Fixed missing import in views

Remove py35 support: "ImportError: No module named 'secrets'" -> 'secrets' is a standard library introduced in Python 3.6

Author: peppelinux

djangosaml2/tests/attribute-maps/django_saml_uri.py

@@ -2,7 +2,7 @@
 PKCS_9 = 'urn:oid:1.2.840.113549.1.9.1.'
 UCL_DIR_PILOT = 'urn:oid:0.9.2342.19200300.100.1.'
 
- MAP = {
+MAP = {
     'identifier': 'urn:oasis:names:tc:SAML:2.0:attrname-format:uri',
     'fro': {
         X500ATTR_OID+'3': 'first_name', # cn

djangosaml2/views.py

@@ -28,6 +28,7 @@
 from django.template import TemplateDoesNotExist
 from django.utils.http import is_safe_url
 from django.views.decorators.csrf import csrf_exempt
+from django.views.decorators.http import require_POST
 from saml2 import BINDING_HTTP_REDIRECT, BINDING_HTTP_POST
 from saml2.client_base import LogoutError
 from saml2.metadata import entity_descriptor

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{35,36,37,38}-django22
+    py{36,37,38}-django22
     py{36,37,38}-django30
     py{36,37,38}-djangomaster