File django21.patch of Package python-django-babel

From 051e0f87afbb5143734c3b3500943d3a5e5e7881 Mon Sep 17 00:00:00 2001
From: Ivan Tsouvarev <tsouvarev@gmail.com>
Date: Fri, 7 Sep 2018 19:24:14 +0300
Subject: [PATCH] Fix imports of token types for Django 2.1

---
 django_babel/extract.py | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/django_babel/extract.py b/django_babel/extract.py
index edb42c7..2b28ce6 100644
--- a/django_babel/extract.py
+++ b/django_babel/extract.py
@@ -1,5 +1,20 @@
 # -*- coding: utf-8 -*-
-from django.template.base import Lexer, TOKEN_TEXT, TOKEN_VAR, TOKEN_BLOCK
+try:
+    from django.template.base import Lexer, TOKEN_TEXT, TOKEN_VAR, TOKEN_BLOCK
+except ImportError:
+    try:
+        # Django 1.8 moved most stuff to .base
+        from django.template.base import (
+            Lexer, TOKEN_TEXT, TOKEN_VAR, TOKEN_BLOCK,
+        )
+    except ImportError:
+        # Django 2.1+
+        from django.template.base import Lexer, TokenType
+
+        TOKEN_TEXT = TokenType.TEXT
+        TOKEN_VAR = TokenType.VAR
+        TOKEN_BLOCK = TokenType.BLOCK
+
 from django.utils.translation import trim_whitespace
 from django.utils.encoding import smart_text