linting: Python 2 compat: Import from `__future__`

3 files changed, 6 insertions, 0 deletions

diff --git a/doc/tools/convert_papermode_to_metadata.py b/doc/tools/convert_papermode_to_metadata.py
index e73df344..d4427a10 100755
--- a/doc/tools/convert_papermode_to_metadata.py
+++ b/doc/tools/convert_papermode_to_metadata.py
@@ -9,6 +9,8 @@ ranger used to store metadata in .paperinfo files, but that format was rather
 limited, so .metadata.json files were introduced.
 """
 
+from __future__ import (absolute_import, print_function)
+
 import csv
 import json
 import os
diff --git a/doc/tools/print_colors.py b/doc/tools/print_colors.py
index c4b6e736..69436778 100755
--- a/doc/tools/print_colors.py
+++ b/doc/tools/print_colors.py
@@ -4,6 +4,8 @@ You can use this tool to display all supported colors and their color number.
 It will exit after a keypress.
 """
 
+from __future__ import (absolute_import, print_function)
+
 import curses
 
 
diff --git a/doc/tools/print_keys.py b/doc/tools/print_keys.py
index cf915591..936d9bf0 100755
--- a/doc/tools/print_keys.py
+++ b/doc/tools/print_keys.py
@@ -3,6 +3,8 @@
 You can use this tool to find out values of keypresses
 """
 
+from __future__ import (absolute_import, print_function)
+
 import curses