bpython
diff --git a/‎bpython/curtsiesfrontend/events.py‎
Lines changed: 10 additions & 8 deletions b/‎bpython/curtsiesfrontend/events.py‎
Lines changed: 10 additions & 8 deletions
@@ -1,23 +1,25 @@
 """Non-keyboard events used in bpython curtsies REPL"""
+
 import time
+from typing import Sequence
 
 import curtsies.events
 
 
 class ReloadEvent(curtsies.events.Event):
     """Request to rerun REPL session ASAP because imported modules changed"""
 
-    def __init__(self, files_modified=("?",)):
+    def __init__(self, files_modified: Sequence[str] = ("?",)) -> None:
         self.files_modified = files_modified
 
-    def __repr__(self):
-        return "<ReloadEvent from %s>" % (" & ".join(self.files_modified))
+    def __repr__(self) -> str:
+        return "<ReloadEvent from {}>".format(" & ".join(self.files_modified))
 
 
 class RefreshRequestEvent(curtsies.events.Event):
     """Request to refresh REPL display ASAP"""
 
-    def __repr__(self):
+    def __repr__(self) -> str:
         return "<RefreshRequestEvent for now>"
 
 
@@ -27,11 +29,11 @@ class ScheduledRefreshRequestEvent(curtsies.events.ScheduledEvent):
     Used to schedule the disappearance of status bar message that only shows
     for a few seconds"""
 
-    def __init__(self, when):
+    def __init__(self, when: float) -> None:
         super().__init__(when)
 
-    def __repr__(self):
-        return "<RefreshRequestEvent for %s seconds from now>" % (
+    def __repr__(self) -> str:
+        return "<RefreshRequestEvent for {} seconds from now>".format(
             self.when - time.time()
         )
 
@@ -43,5 +45,5 @@ class RunStartupFileEvent(curtsies.events.Event):
 class UndoEvent(curtsies.events.Event):
     """Request to undo."""
 
-    def __init__(self, n=1):
+    def __init__(self, n: int = 1) -> None:
         self.n = n