diff --git a/src/calibre/gui2/store/__init__.py b/src/calibre/gui2/store/__init__.py
index 7e85033c43..7e4e923651 100644
--- a/src/calibre/gui2/store/__init__.py
+++ b/src/calibre/gui2/store/__init__.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'
diff --git a/src/calibre/gui2/store/basic_config.py b/src/calibre/gui2/store/basic_config.py
index 85a9818db7..33d91e5d70 100644
--- a/src/calibre/gui2/store/basic_config.py
+++ b/src/calibre/gui2/store/basic_config.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'
diff --git a/src/calibre/gui2/store/opensearch_store.py b/src/calibre/gui2/store/opensearch_store.py
index 5c0636fb74..5acf124455 100644
--- a/src/calibre/gui2/store/opensearch_store.py
+++ b/src/calibre/gui2/store/opensearch_store.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'
diff --git a/src/calibre/gui2/store/search/models.py b/src/calibre/gui2/store/search/models.py
index 1c35722fd7..05b86c7024 100644
--- a/src/calibre/gui2/store/search/models.py
+++ b/src/calibre/gui2/store/search/models.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'
diff --git a/src/calibre/gui2/store/search/results_view.py b/src/calibre/gui2/store/search/results_view.py
index 0bed9cee29..f32587b965 100644
--- a/src/calibre/gui2/store/search/results_view.py
+++ b/src/calibre/gui2/store/search/results_view.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'
diff --git a/src/calibre/gui2/store/stores/litres_plugin.py b/src/calibre/gui2/store/stores/litres_plugin.py
index ad25cb08e7..5fe005ed55 100644
--- a/src/calibre/gui2/store/stores/litres_plugin.py
+++ b/src/calibre/gui2/store/stores/litres_plugin.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 store_version = 1  # Needed for dynamic plugin loading
 
diff --git a/src/calibre/gui2/store/stores/manybooks_plugin.py b/src/calibre/gui2/store/stores/manybooks_plugin.py
index 12348a7b0f..5087673310 100644
--- a/src/calibre/gui2/store/stores/manybooks_plugin.py
+++ b/src/calibre/gui2/store/stores/manybooks_plugin.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 store_version = 1  # Needed for dynamic plugin loading
 
diff --git a/src/calibre/utils/opensearch/url.py b/src/calibre/utils/opensearch/url.py
index 4e12d0468d..5d1cb18e90 100644
--- a/src/calibre/utils/opensearch/url.py
+++ b/src/calibre/utils/opensearch/url.py
@@ -1,4 +1,5 @@
 # -*- coding: utf-8 -*-
+from __future__ import absolute_import, division, print_function, unicode_literals
 
 
 __license__ = 'GPL 3'