Import Context from django.template.context

It was available as django.template.base.Context for backwards
compatibility but was removed in Django 3.1

Author: vmsp

pipeline/templatetags/pipeline.py

@@ -4,7 +4,8 @@
 from django.contrib.staticfiles.storage import staticfiles_storage
 
 from django import template
-from django.template.base import Context, VariableDoesNotExist
+from django.template.context import Context
+from django.template.base import VariableDoesNotExist
 from django.template.loader import render_to_string
 from django.utils.safestring import mark_safe