9 files changed, 10 insertions, 1 deletions
diff --git a/examples/dialogs/button_dialog.py b/examples/dialogs/button_dialog.py
index 7a99b9a..24e1a47 100755
--- a/examples/dialogs/button_dialog.py
+++ b/examples/dialogs/button_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of button dialog window.
 """
+
 from prompt_toolkit.shortcuts import button_dialog
 
 
diff --git a/examples/dialogs/checkbox_dialog.py b/examples/dialogs/checkbox_dialog.py
index 90be263..70df166 100755
--- a/examples/dialogs/checkbox_dialog.py
+++ b/examples/dialogs/checkbox_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of a checkbox-list-based dialog.
 """
+
 from prompt_toolkit.formatted_text import HTML
 from prompt_toolkit.shortcuts import checkboxlist_dialog, message_dialog
 from prompt_toolkit.styles import Style
@@ -30,7 +31,7 @@ results = checkboxlist_dialog(
 if results:
     message_dialog(
         title="Room service",
-        text="You selected: %s\nGreat choice sir !" % ",".join(results),
+        text="You selected: {}\nGreat choice sir !".format(",".join(results)),
     ).run()
 else:
     message_dialog("*starves*").run()
diff --git a/examples/dialogs/input_dialog.py b/examples/dialogs/input_dialog.py
index 6235265..057bc37 100755
--- a/examples/dialogs/input_dialog.py
+++ b/examples/dialogs/input_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of an input box dialog.
 """
+
 from prompt_toolkit.shortcuts import input_dialog
 
 
diff --git a/examples/dialogs/messagebox.py b/examples/dialogs/messagebox.py
index 4642b84..7b11580 100755
--- a/examples/dialogs/messagebox.py
+++ b/examples/dialogs/messagebox.py
@@ -2,6 +2,7 @@
 """
 Example of a message box window.
 """
+
 from prompt_toolkit.shortcuts import message_dialog
 
 
diff --git a/examples/dialogs/password_dialog.py b/examples/dialogs/password_dialog.py
index 39d7b9c..d3752ba 100755
--- a/examples/dialogs/password_dialog.py
+++ b/examples/dialogs/password_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of an password input dialog.
 """
+
 from prompt_toolkit.shortcuts import input_dialog
 
 
diff --git a/examples/dialogs/progress_dialog.py b/examples/dialogs/progress_dialog.py
index 1fd3ffb..7a29f1b 100755
--- a/examples/dialogs/progress_dialog.py
+++ b/examples/dialogs/progress_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of a progress bar dialog.
 """
+
 import os
 import time
 
diff --git a/examples/dialogs/radio_dialog.py b/examples/dialogs/radio_dialog.py
index 94d80e2..aed9d66 100755
--- a/examples/dialogs/radio_dialog.py
+++ b/examples/dialogs/radio_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of a radio list box dialog.
 """
+
 from prompt_toolkit.formatted_text import HTML
 from prompt_toolkit.shortcuts import radiolist_dialog
 
diff --git a/examples/dialogs/styled_messagebox.py b/examples/dialogs/styled_messagebox.py
index 3f6fc53..5ca197f 100755
--- a/examples/dialogs/styled_messagebox.py
+++ b/examples/dialogs/styled_messagebox.py
@@ -7,6 +7,7 @@ styling.
 This also demonstrates that the `title` argument can be any kind of formatted
 text.
 """
+
 from prompt_toolkit.formatted_text import HTML
 from prompt_toolkit.shortcuts import message_dialog
 from prompt_toolkit.styles import Style
diff --git a/examples/dialogs/yes_no_dialog.py b/examples/dialogs/yes_no_dialog.py
index 4b08dd6..6463a38 100755
--- a/examples/dialogs/yes_no_dialog.py
+++ b/examples/dialogs/yes_no_dialog.py
@@ -2,6 +2,7 @@
 """
 Example of confirmation (yes/no) dialog window.
 """
+
 from prompt_toolkit.shortcuts import yes_no_dialog